{"id":15409,"date":"2026-09-22T06:09:02","date_gmt":"2026-09-22T06:09:02","guid":{"rendered":"https:\/\/tenessy.com\/?p=15409"},"modified":"2026-09-22T06:10:55","modified_gmt":"2026-09-22T06:10:55","slug":"hec-vs-hpmc-choosing-the-right-cellulose-ether-for-coatings-2","status":"publish","type":"post","link":"https:\/\/tenessy.com\/el\/hec-vs-hpmc-choosing-the-right-cellulose-ether-for-coatings-2\/","title":{"rendered":"HEC \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 HPMC: \u0397 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae \u03c4\u03bf\u03c5 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03bf\u03c5 \u03b1\u03b9\u03b8\u03ad\u03c1\u03b1 \u03ba\u03c5\u03c4\u03c4\u03b1\u03c1\u03af\u03bd\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03b5\u03c0\u03b9\u03c7\u03c1\u03af\u03c3\u03bc\u03b1\u03c4\u03b1"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Choosing between HEC vs <a href=\"https:\/\/tenessy.com\/products\/hpmc-hydroxypropyl-methyl-cellulose\/\"><u>HPMC<\/u><\/a>\u00a0for coatings comes down to three questions: what kind of coating you are making, which performance target you must hit, and how the thickener interacts with the rest of the formulation. Hydroxyethyl cellulose (HEC) dominates water-based paints, while <a href=\"https:\/\/tenessy.com\/products\/hpmc-hydroxypropyl-methyl-cellulose\/\"><u>\u03c5\u03b4\u03c1\u03bf\u03be\u03c5\u03c0\u03c1\u03bf\u03c0\u03c5\u03bb\u03bf\u03bc\u03b5\u03b8\u03c5\u03bb\u03bf\u03ba\u03c5\u03c4\u03c4\u03b1\u03c1\u03af\u03bd\u03b7 (HPMC) <\/u><\/a>is the standard in cementitious coatings and dry-mix mortar systems \u2014 and understanding exactly why is the key to formulating without trial-and-error.<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"704\" height=\"468\" data-id=\"15411\" src=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/09\/502.jpg\" alt=\"\" class=\"wp-image-15411\" title=\"\" srcset=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/09\/502.jpg 704w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/09\/502-300x199.jpg 300w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/09\/502-18x12.jpg 18w\" sizes=\"(max-width: 704px) 100vw, 704px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1200\" height=\"759\" data-id=\"15412\" src=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/09\/503-1.jpg\" alt=\"\" class=\"wp-image-15412\" title=\"\" srcset=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/09\/503-1.jpg 1200w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/09\/503-1-300x190.jpg 300w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/09\/503-1-1024x648.jpg 1024w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/09\/503-1-768x486.jpg 768w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/09\/503-1-18x12.jpg 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><figcaption><\/figcaption><\/figure>\n<\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u0395\u03b9\u03c3\u03b1\u03b3\u03c9\u03b3\u03ae<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">HEC vs HPMC is one of the most common formulation questions in the coatings industry, and the answer is rarely &#8220;either one will do.&#8221; Although both are cellulose ethers, they are optimized for different worlds. HEC is a non-ionic, purely water-phase thickener that was developed for latex paints and is still the reference thickener in emulsion coatings. HPMC is a methyl-substituted cellulose ether that was developed for building chemistry \u2014 it thickens, retains water, and lubricates cementitious and gypsum-based systems, and it is only occasionally used in paint.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The structural difference is simple but decisive. In HEC, the hydroxyl groups of cellulose are substituted with hydroxyethyl groups (\u2013OCH\u2082CH\u2082OH). In HPMC, they are substituted with a combination of methoxy (\u2013OCH\u2083) and hydroxypropyl (\u2013OCH\u2082CH(OH)CH\u2083) groups. Because <a href=\"https:\/\/tenessy.com\/products\/hpmc-hydroxypropyl-methyl-cellulose\/\"><u>HPMC<\/u><\/a>&nbsp;carries hydrophobic methoxy groups, its solutions have surface-active character, a lower thermal gelation point (55\u201365 \u00b0C versus 65\u201375 \u00b0C for HEC), and different interactions with latex, pigment, and salt \u2014 all of which change how it behaves in a coating.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u03a3\u03c4\u03bf<a href=\"https:\/\/tenessy.com\/\"><u>&nbsp;TENESSY Chemical<\/u><\/a>, \u03c0\u03b1\u03c1\u03ac\u03b3\u03bf\u03c5\u03bc\u03b5 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c0\u03bf\u03bb\u03c5\u03bc\u03b5\u03c1\u03ae \u03b1\u03c0\u03cc \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03af\u03bd\u03b5\u03c2 \u03b2\u03b1\u03bc\u03b2\u03b1\u03ba\u03b9\u03bf\u03cd \u03bc\u03b5 \u03b3\u03b5\u03c1\u03bc\u03b1\u03bd\u03b9\u03ba\u03cc \u03b5\u03be\u03bf\u03c0\u03bb\u03b9\u03c3\u03bc\u03cc, \u03b5\u03bd\u03ce \u03b4\u03b9\u03b1\u03b8\u03ad\u03c4\u03bf\u03c5\u03bc\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf\u03c5\u03c2 \u03b1\u03c0\u03cc 10.000 \u03c0\u03b5\u03bb\u03ac\u03c4\u03b5\u03c2 \u03c3\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03b1\u03c0\u03cc 40 \u03c7\u03ce\u03c1\u03b5\u03c2. \u0391\u03c5\u03c4\u03ae \u03b7 \u03b5\u03bc\u03c0\u03b5\u03b9\u03c1\u03af\u03b1 \u03bc\u03b5 \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1 \u03bc\u03b1\u03c2 \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03bc\u03b9\u03b1 \u03bc\u03bf\u03bd\u03b1\u03b4\u03b9\u03ba\u03ae \u03c0\u03c1\u03bf\u03bf\u03c0\u03c4\u03b9\u03ba\u03ae: \u03c0\u03b1\u03c1\u03b1\u03c4\u03b7\u03c1\u03bf\u03cd\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03bf\u03b9 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03c7\u03c1\u03c9\u03bc\u03ac\u03c4\u03c9\u03bd \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03bf\u03af \u03be\u03b7\u03c1\u03ce\u03bd \u03bc\u03b9\u03b3\u03bc\u03ac\u03c4\u03c9\u03bd \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03c4\u03b1 \u03af\u03b4\u03b9\u03b1 \u03b4\u03cd\u03bf \u03bc\u03cc\u03c1\u03b9\u03b1 \u03bc\u03b5 \u03c0\u03bf\u03bb\u03cd \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03cc \u03c4\u03c1\u03cc\u03c0\u03bf, \u03ba\u03b1\u03b9 \u03bf \u03c0\u03b1\u03c1\u03ce\u03bd \u03bf\u03b4\u03b7\u03b3\u03cc\u03c2 \u03c3\u03c5\u03bd\u03bf\u03c8\u03af\u03b6\u03b5\u03b9 \u03cc\u03c3\u03b1 \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5 \u03bc\u03ac\u03b8\u03b5\u03b9 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03b1 \u03c0\u03bb\u03b5\u03bf\u03bd\u03b5\u03ba\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03ba\u03b1\u03b8\u03b5\u03bd\u03cc\u03c2. \u0398\u03b1 \u03b2\u03c1\u03b5\u03af\u03c4\u03b5 \u03ad\u03bd\u03b1\u03bd \u03bb\u03b5\u03c0\u03c4\u03bf\u03bc\u03b5\u03c1\u03ae \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7\u03c2, \u03c4\u03b7 \u03bb\u03bf\u03b3\u03b9\u03ba\u03ae \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae\u03c2 \u03b3\u03b9\u03b1 \u03ba\u03ac\u03b8\u03b5 \u03c0\u03bf\u03bb\u03c5\u03bc\u03b5\u03c1\u03ad\u03c2, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bf\u03b4\u03b7\u03b3\u03af\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03bc\u03b9\u03ba\u03c4\u03ae\u03c2 \u03c7\u03c1\u03ae\u03c3\u03b7\u03c2 \u03cc\u03c0\u03bf\u03c5 \u03c4\u03bf HEC \u03ba\u03b1\u03b9 \u03c4\u03bf HPMC \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03af\u03b4\u03b9\u03b1 \u03c3\u03cd\u03bd\u03b8\u03b5\u03c3\u03b7.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>HEC \u03ad\u03bd\u03b1\u03bd\u03c4\u03b9 HPMC: \u0386\u03bc\u03b5\u03c3\u03b7 \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03c3\u03c4\u03b9\u03c2 \u03b5\u03c0\u03b9\u03ba\u03b1\u03bb\u03cd\u03c8\u03b5\u03b9\u03c2<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>\u0391\u03ba\u03af\u03bd\u03b7\u03c4\u03b1<\/strong><strong><\/strong><\/td><td><strong>HEC<\/strong><strong><\/strong><\/td><td><strong>HPMC<\/strong><strong><\/strong><\/td><\/tr><tr><td>\u039f\u03bc\u03ac\u03b4\u03b5\u03c2 \u03c5\u03c0\u03bf\u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03b1\u03c4\u03ce\u03bd<\/td><td>\u03a5\u03b4\u03c1\u03bf\u03be\u03c5\u03b1\u03b9\u03b8\u03cd\u03bb\u03b9\u03bf (\u2013OCH\u2082CH\u2082OH)<\/td><td>Methoxy + hydroxypropyl (\u2013OCH\u2083, \u2013OCH\u2082CH(OH)CH\u2083)<\/td><\/tr><tr><td>\u0399\u03bf\u03bd\u03b9\u03ba\u03cc\u03c2 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03ae\u03c1\u03b1\u03c2<\/td><td>\u039c\u03b7 \u03b9\u03bf\u03bd\u03b9\u03ba\u03cc<\/td><td>\u039c\u03b7 \u03b9\u03bf\u03bd\u03b9\u03ba\u03cc<\/td><\/tr><tr><td>\u0398\u03ad\u03c3\u03b7 \u03c0\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7\u03c2<\/td><td>\u039c\u03cc\u03bd\u03bf \u03c5\u03b4\u03b1\u03c4\u03b9\u03ba\u03ae \u03c6\u03ac\u03c3\u03b7<\/td><td>\u03a5\u03b4\u03b1\u03c4\u03b9\u03ba\u03ae \u03c6\u03ac\u03c3\u03b7 + \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03b1\u03ba\u03ae \u03b4\u03c1\u03b1\u03c3\u03c4\u03b7\u03c1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1<\/td><\/tr><tr><td>\u03b5\u03c5\u03b1\u03b9\u03c3\u03b8\u03b7\u03c3\u03af\u03b1 \u03c3\u03c4\u03bf pH<\/td><td>\u039a\u03b1\u03bd\u03ad\u03bd\u03b1<\/td><td>\u039a\u03b1\u03bd\u03ad\u03bd\u03b1<\/td><\/tr><tr><td>\u0391\u03bd\u03bf\u03c7\u03ae \u03c3\u03c4\u03bf \u03b1\u03bb\u03ac\u03c4\u03b9<\/td><td>\u0395\u03be\u03b1\u03b9\u03c1\u03b5\u03c4\u03b9\u03ba\u03cc<\/td><td>\u039a\u03b1\u03bb\u03cc (\u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03c4\u03b1 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b1 \u03c0\u03c5\u03ba\u03bd\u03c9\u03c4\u03b9\u03ba\u03ac)<\/td><\/tr><tr><td>\u0398\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1 \u03b8\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae\u03c2 \u03c0\u03ae\u03be\u03b7\u03c2<\/td><td>65\u201375 \u00b0C<\/td><td>55\u201365 \u00b0C<\/td><\/tr><tr><td>\u03a3\u03c4\u03b1\u03b8\u03b5\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03bf\u03c5 \u03b9\u03be\u03ce\u03b4\u03bf\u03c5\u03c2 \u03c3\u03b5 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03b7 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1<\/td><td>\u03a5\u03c8\u03b7\u03bb\u03ae<\/td><td>\u039c\u03ad\u03c4\u03c1\u03b9\u03b1 (\u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03c0\u03b7\u03ba\u03c4\u03c9\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2)<\/td><\/tr><tr><td>\u0391\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c0\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7\u03c2 (KU \u03b1\u03bd\u03ac kg)<\/td><td>\u03a5\u03c8\u03b7\u03bb\u03ae<\/td><td>\u039c\u03ad\u03c4\u03c1\u03b9\u03b1 \u03ad\u03c9\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae<\/td><\/tr><tr><td>\u0394\u03b9\u03b1\u03c4\u03bc\u03b7\u03c4\u03b9\u03ba\u03ae \u03c1\u03b5\u03c5\u03c3\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 (\u03c8\u03b5\u03c5\u03b4\u03bf\u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1)<\/td><td>\u0399\u03c3\u03c7\u03c5\u03c1\u03cc<\/td><td>\u039c\u03ad\u03c4\u03c1\u03b9\u03b1<\/td><\/tr><tr><td>\u0391\u03bd\u03c4\u03af\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c3\u03b5 \u03ba\u03ac\u03bc\u03c8\u03b7 \u03c3\u03b5 \u03af\u03c3\u03bf \u03b9\u03be\u03ce\u03b4\u03b5\u03c2<\/td><td>\u0395\u03be\u03b1\u03b9\u03c1\u03b5\u03c4\u03b9\u03ba\u03cc<\/td><td>\u039a\u03b1\u03bb\u03ae<\/td><\/tr><tr><td>\u0395\u03be\u03b9\u03c3\u03bf\u03c1\u03c1\u03cc\u03c0\u03b7\u03c3\u03b7<\/td><td>\u0399\u03ba\u03b1\u03bd\u03bf\u03c0\u03bf\u03b9\u03b7\u03c4\u03b9\u03ba\u03ae (\u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c4\u03b7 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03c3\u03c5\u03bd-\u03c0\u03b1\u03c7\u03c5\u03bd\u03c4\u03b9\u03ba\u03bf\u03cd)<\/td><td>\u039c\u03ad\u03c4\u03c1\u03b9\u03b1<\/td><\/tr><tr><td>\u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03bf \u03bd\u03b5\u03c1\u03cc \u03c4\u03b7\u03c2 \u03be\u03b7\u03c1\u03ae\u03c2 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7\u03c2<\/td><td>\u039a\u03b1\u03bb\u03cc (\u03bc\u03b7 \u03b9\u03bf\u03bd\u03b9\u03ba\u03cc, \u03c7\u03b1\u03bc\u03b7\u03bb\u03ae \u03b4\u03bf\u03c3\u03bf\u03bb\u03bf\u03b3\u03af\u03b1)<\/td><td>\u039c\u03ad\u03c4\u03c1\u03b9\u03b1 (\u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03bf\u03b4\u03c1\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae, \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b4\u03cc\u03c3\u03b7)<\/td><\/tr><tr><td>\u0391\u03bd\u03c4\u03bf\u03c7\u03ae \u03c4\u03bf\u03c5 \u03c6\u03b9\u03bb\u03bc \u03b2\u03b1\u03c6\u03ae\u03c2 \u03c3\u03b5 \u03c5\u03b3\u03c1\u03cc \u03c4\u03c1\u03af\u03c8\u03b9\u03bc\u03bf<\/td><td>\u039a\u03b1\u03bb\u03ae \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c3\u03b5 \u22640,45%<\/td><td>\u039c\u03b5\u03b9\u03c9\u03bc\u03ad\u03bd\u03b7 \u03c3\u03b5 \u03b9\u03c3\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b4\u03cc\u03c3\u03b7<\/td><\/tr><tr><td>\u03a3\u03c5\u03bc\u03b2\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b5 \u03c3\u03c5\u03bd\u03b4\u03b5\u03c4\u03b9\u03ba\u03ac \u03c5\u03bb\u03b9\u03ba\u03ac \u03b1\u03c0\u03cc \u03bb\u03b1\u03c4\u03ad\u03be<\/td><td>\u0395\u03be\u03b1\u03b9\u03c1\u03b5\u03c4\u03b9\u03ba\u03cc<\/td><td>\u039a\u03b1\u03bb\u03cc (\u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03ad\u03c7\u03b5\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03b9\u03b4\u03c1\u03ac\u03c3\u03b5\u03b9\u03c2 \u03bc\u03b5 \u03c4\u03b1 \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03bf\u03b4\u03c1\u03b1\u03c3\u03c4\u03b9\u03ba\u03ac)<\/td><\/tr><tr><td>\u03a3\u03c5\u03bc\u03b2\u03b1\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03bc\u03b5 \u03c4\u03c3\u03b9\u03bc\u03ad\u03bd\u03c4\u03bf\/\u03b3\u03cd\u03c8\u03bf<\/td><td>\u039c\u03ad\u03c4\u03c1\u03b9\u03b1<\/td><td>\u0395\u03be\u03b1\u03b9\u03c1\u03b5\u03c4\u03b9\u03ba\u03cc (\u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf \u03b3\u03b9\u03b1 \u03be\u03b7\u03c1\u03ac \u03bc\u03af\u03b3\u03bc\u03b1\u03c4\u03b1)<\/td><\/tr><tr><td>\u039a\u03b1\u03c4\u03b1\u03ba\u03c1\u03ac\u03c4\u03b7\u03c3\u03b7 \u03bd\u03b5\u03c1\u03bf\u03cd \u03c3\u03b5 \u03c4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03b5\u03b9\u03b4\u03ae \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1<\/td><td>\u03a7\u03b1\u03bc\u03b7\u03bb\u03ae<\/td><td>\u0386\u03c1\u03b9\u03c3\u03c4\u03bf (\u03ba\u03cd\u03c1\u03b9\u03b1 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1)<\/td><\/tr><tr><td>\u0394\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03c6\u03b9\u03bb\u03bc \/ \u03c3\u03cd\u03bd\u03b4\u03b5\u03c3\u03b7<\/td><td>\u0391\u03b4\u03cd\u03bd\u03b1\u03bc\u03bf<\/td><td>\u03a0\u03c1\u03bf\u03c3\u03b4\u03af\u03b4\u03b5\u03b9 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03ae\u03c1\u03b1 \u03c0\u03bf\u03c5 \u03bc\u03bf\u03b9\u03ac\u03b6\u03b5\u03b9 \u03bc\u03b5 \u03b1\u03c5\u03c4\u03cc\u03bd \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03b4\u03b5\u03c4\u03b9\u03ba\u03bf\u03cd \u03c5\u03bb\u03b9\u03ba\u03bf\u03cd<\/td><\/tr><tr><td>\u03a3\u03c5\u03bc\u03c0\u03b5\u03c1\u03b9\u03c6\u03bf\u03c1\u03ac \u03b4\u03b9\u03b1\u03bb\u03c5\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2<\/td><td>\u039c\u03cc\u03bd\u03bf \u03ba\u03c1\u03cd\u03bf \u03bd\u03b5\u03c1\u03cc<\/td><td>\u039a\u03c1\u03cd\u03bf \u03bd\u03b5\u03c1\u03cc\u00b7 \u03c4\u03bf \u03b6\u03b5\u03c3\u03c4\u03cc \u03bd\u03b5\u03c1\u03cc \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03b4\u03b9\u03b1\u03c3\u03c0\u03bf\u03c1\u03ad\u03c2<\/td><\/tr><tr><td>\u039a\u03cd\u03c1\u03b9\u03b1 \u03c7\u03c1\u03ae\u03c3\u03b7<\/td><td>\u03a7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03bb\u03b1\u03c4\u03ad\u03be, \u03c5\u03c6\u03ac\u03c3\u03bc\u03b1\u03c4\u03b1, \u03c0\u03b5\u03c4\u03c1\u03b5\u03bb\u03b1\u03ca\u03ba\u03ac \u03ba\u03bf\u03b9\u03c4\u03ac\u03c3\u03bc\u03b1\u03c4\u03b1<\/td><td>\u03a4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03ba\u03bf\u03bd\u03af\u03b5\u03c2 \u03be\u03b7\u03c1\u03ae\u03c2 \u03b1\u03bd\u03ac\u03bc\u03b5\u03b9\u03be\u03b7\u03c2, \u03b3\u03cd\u03c8\u03bf\u03c2, \u03bf\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/tenessy.com\/wp-content\/uploads\/2025\/08\/HPMC-samples-1024x683.jpg\" alt=\"\" class=\"wp-image-12744\" title=\"\" srcset=\"https:\/\/tenessy.com\/wp-content\/uploads\/2025\/08\/HPMC-samples-1024x683.jpg 1024w, https:\/\/tenessy.com\/wp-content\/uploads\/2025\/08\/HPMC-samples-300x200.jpg 300w, https:\/\/tenessy.com\/wp-content\/uploads\/2025\/08\/HPMC-samples-768x512.jpg 768w, https:\/\/tenessy.com\/wp-content\/uploads\/2025\/08\/HPMC-samples-1536x1024.jpg 1536w, https:\/\/tenessy.com\/wp-content\/uploads\/2025\/08\/HPMC-samples-2048x1365.jpg 2048w, https:\/\/tenessy.com\/wp-content\/uploads\/2025\/08\/HPMC-samples-18x12.jpg 18w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption><\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">The table tells the story: HEC is engineered for paint, <a href=\"https:\/\/tenessy.com\/\"><u>HPMC for mortar<\/u><\/a>. But three rows deserve special attention because they explain most formulation decisions.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>1. \u0391\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c0\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03b1\u03bc\u03c0\u03cd\u03bb\u03b7 \u03b9\u03be\u03ce\u03b4\u03bf\u03c5\u03c2<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u03a3\u03b5 \u03af\u03c3\u03bf \u03bc\u03bf\u03c1\u03b9\u03b1\u03ba\u03cc \u03b2\u03ac\u03c1\u03bf\u03c2, \u03c4\u03bf HEC \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03c0\u03b9\u03bf \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c0\u03c5\u03ba\u03bd\u03c9\u03c4\u03b9\u03ba\u03cc \u03c3\u03c4\u03bf \u03bd\u03b5\u03c1\u03cc \u03c3\u03b5 \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03bc\u03b5 \u03c4\u03bf HPMC, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03bf\u03b9 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b5\u03c2, \u03c0\u03bb\u03ae\u03c1\u03c9\u03c2 \u03c5\u03b4\u03c1\u03cc\u03c6\u03b9\u03bb\u03b5\u03c2 \u03c0\u03bb\u03b5\u03c5\u03c1\u03b9\u03ba\u03ad\u03c2 \u03b1\u03bb\u03c5\u03c3\u03af\u03b4\u03b5\u03c2 \u03c5\u03b4\u03c1\u03bf\u03be\u03c5\u03b1\u03b9\u03b8\u03c5\u03bb\u03af\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03ba\u03b1\u03c4\u03b1\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03c5\u03bd \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf \u03c5\u03b4\u03c1\u03bf\u03b4\u03c5\u03bd\u03b1\u03bc\u03b9\u03ba\u03cc \u03cc\u03b3\u03ba\u03bf \u03ba\u03b1\u03b9 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03bf\u03cd\u03bd \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc\u03c4\u03b5\u03c1\u03b5\u03c2 \u03b4\u03b9\u03b1\u03c3\u03c5\u03bd\u03b4\u03ad\u03c3\u03b5\u03b9\u03c2. \u03a3\u03b5 \u03ad\u03bd\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1, \u03b7 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ae \u03c3\u03c5\u03bd\u03ad\u03c0\u03b5\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03cc\u03c4\u03b9 \u03c4\u03bf HEC \u03b5\u03c0\u03b9\u03c4\u03c5\u03b3\u03c7\u03ac\u03bd\u03b5\u03b9 \u03ad\u03bd\u03b1\u03bd \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03bf \u03c3\u03c4\u03cc\u03c7\u03bf Stormer (KU) \u03bc\u03b5 \u03c7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03be\u03b7\u03c1\u03ae \u03b4\u03bf\u03c3\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03b1\u03c0\u03cc \u03c4\u03bf HPMC. \u0391\u03ba\u03cc\u03bc\u03b7 \u03c0\u03b9\u03bf \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03cc, \u03c4\u03bf HEC \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03b4\u03bf\u03bc\u03ae \u03c7\u03b1\u03bc\u03b7\u03bb\u03ae\u03c2 \u03b4\u03b9\u03ac\u03c4\u03bc\u03b7\u03c3\u03b7\u03c2 \u2014 \u03cc\u03c1\u03b9\u03bf \u03b5\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03b9 \u03b9\u03be\u03ce\u03b4\u03b5\u03c2 \u03b7\u03c1\u03b5\u03bc\u03af\u03b1\u03c2 \u2014 \u03c0\u03b9\u03bf \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac, \u03ba\u03ac\u03c4\u03b9 \u03c0\u03bf\u03c5 \u03bc\u03b5\u03c4\u03b1\u03c6\u03c1\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03ac\u03bc\u03b5\u03c3\u03b1 \u03c3\u03b5 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03c1\u03b5\u03c5\u03c3\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03c0\u03bf\u03c4\u03c1\u03bf\u03c0\u03ae \u03c4\u03b7\u03c2 \u03ba\u03b1\u03b8\u03af\u03b6\u03b7\u03c3\u03b7\u03c2 \u03c4\u03c9\u03bd \u03c7\u03c1\u03c9\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>2. \u03a5\u03b4\u03c1\u03bf\u03c6\u03bf\u03b2\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1: \u0397 \u03ba\u03c1\u03c5\u03c6\u03ae \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/tenessy.com\/products\/hpmc-hydroxypropyl-methyl-cellulose\/\"><u>HPMC<\/u><\/a>&nbsp;\u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03b5\u03b9 \u03bf\u03bc\u03ac\u03b4\u03b5\u03c2 \u03bc\u03b5\u03b8\u03bf\u03be\u03c5, \u03bf\u03b9 \u03bf\u03c0\u03bf\u03af\u03b5\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c5\u03b4\u03c1\u03cc\u03c6\u03bf\u03b2\u03b5\u03c2. \u03a3\u03c4\u03bf \u03bd\u03b5\u03c1\u03cc, \u03b1\u03c5\u03c4\u03ad\u03c2 \u03bf\u03b9 \u03bf\u03bc\u03ac\u03b4\u03b5\u03c2 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03bf\u03cd\u03bd \u03ae\u03c0\u03b9\u03b1 \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03b1\u03ba\u03ae \u03b4\u03c1\u03ac\u03c3\u03b7: \u03c4\u03b1 \u03b4\u03b9\u03b1\u03bb\u03cd\u03bc\u03b1\u03c4\u03b1 HPMC \u03bc\u03b5\u03b9\u03ce\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03b1\u03ba\u03ae \u03c4\u03ac\u03c3\u03b7, \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03c4\u03b9\u03c2 \u03c6\u03c5\u03c3\u03b1\u03bb\u03af\u03b4\u03b5\u03c2 \u03b1\u03ad\u03c1\u03b1 \u03ba\u03b1\u03b9 \u03b1\u03bb\u03bb\u03b7\u03bb\u03b5\u03c0\u03b9\u03b4\u03c1\u03bf\u03cd\u03bd \u03bc\u03b5 \u03c4\u03b1 \u03bc\u03b9\u03ba\u03ba\u03cd\u03bb\u03b9\u03b1 \u03c4\u03c9\u03bd \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03bf\u03b4\u03c1\u03b1\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03bf\u03c5\u03c3\u03b9\u03ce\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03c3\u03c9\u03bc\u03b1\u03c4\u03af\u03b4\u03b9\u03b1 \u03bb\u03b1\u03c4\u03ad\u03be. \u03a3\u03b5 \u03ad\u03bd\u03b1 \u03c4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03b5\u03b9\u03b4\u03ad\u03c2 \u03ba\u03bf\u03bd\u03af\u03b1\u03bc\u03b1 \u03b1\u03c5\u03c4\u03cc \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03c0\u03bb\u03b5\u03bf\u03bd\u03ad\u03ba\u03c4\u03b7\u03bc\u03b1 (\u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03bb\u03af\u03c0\u03b1\u03bd\u03c3\u03b7, \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf\u03c2 \u03c4\u03b7\u03c2 \u03b5\u03b9\u03c3\u03b1\u03b3\u03c9\u03b3\u03ae\u03c2 \u03b1\u03ad\u03c1\u03b1). \u03a3\u03b5 \u03ad\u03bd\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1 \u03bb\u03b1\u03c4\u03ad\u03be, \u03b1\u03c5\u03c4\u03cc \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1: \u03c4\u03bf HPMC \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03c0\u03bf\u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03b9 \u03c4\u03b7 \u03b4\u03b9\u03b1\u03c3\u03c0\u03bf\u03c1\u03ac \u03c4\u03bf\u03c5 \u03bb\u03b1\u03c4\u03ad\u03be, \u03bd\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03ad\u03c3\u03b5\u03b9 \u03b1\u03c6\u03c1\u03cc \u03c0\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03cd\u03c3\u03ba\u03bf\u03bb\u03bf \u03bd\u03b1 \u03b5\u03be\u03b1\u03c6\u03b1\u03bd\u03b9\u03c3\u03c4\u03b5\u03af \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03c6\u03ae\u03c3\u03b5\u03b9 \u03ad\u03bd\u03b1 \u03c6\u03b9\u03bb\u03bc \u03b5\u03bb\u03b1\u03c6\u03c1\u03ce\u03c2 \u03b5\u03c5\u03b1\u03af\u03c3\u03b8\u03b7\u03c4\u03bf \u03c3\u03c4\u03bf \u03bd\u03b5\u03c1\u03cc. \u03a4\u03bf HEC \u03b4\u03b5\u03bd \u03ad\u03c7\u03b5\u03b9 \u03c5\u03b4\u03c1\u03cc\u03c6\u03bf\u03b2\u03b5\u03c2 \u03bf\u03bc\u03ac\u03b4\u03b5\u03c2, \u03b3\u03b9\u2019 \u03b1\u03c5\u03c4\u03cc \u03ba\u03b1\u03b9 \u03b4\u03b5\u03bd \u03b4\u03b9\u03b1\u03c4\u03b1\u03c1\u03ac\u03c3\u03c3\u03b5\u03b9 \u03c0\u03bf\u03c4\u03ad \u03c4\u03bf \u03bb\u03b1\u03c4\u03ad\u03be.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>3. \u0395\u03c5\u03b1\u03b9\u03c3\u03b8\u03b7\u03c3\u03af\u03b1 \u03c4\u03b7\u03c2 \u03be\u03b7\u03c1\u03ae\u03c2 \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7\u03c2 \u03c3\u03c4\u03bf \u03bd\u03b5\u03c1\u03cc<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Every water-phase thickener leaves some water-soluble polymer in the dry film. The question is how much sensitivity it creates. <a href=\"https:\/\/tenessy.com\/products\/hec-hydroxyethyl-cellulose\/\"><u>HEC<\/u><\/a>&nbsp;at typical paint dosage (0.25\u20130.45%) forms a film with good water resistance, and paints pass 300\u2013500+ wet-scrub cycles per ASTM D2486. HPMC at the same dosage tends to soften the film more, because the surface-active methoxy groups slow latex coalescence locally. This is the single most common reason a formulator who switches a paint from HEC to HPMC sees scrub resistance fall. The reverse \u2014 switching a mortar from HPMC to HEC \u2014 fails for the opposite reason: HEC cannot supply the water retention that cement hydration needs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u03a0\u03cc\u03c4\u03b5 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03bb\u03ad\u03be\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd HEC: \u03a3\u03c5\u03bd\u03b8\u03ad\u03c3\u03b5\u03b9\u03c2 \u03bb\u03b1\u03c4\u03ad\u03be \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03c9\u03bd<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">HEC is the default thickener for water-based paints, and specifically for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u03a7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03bb\u03b1\u03c4\u03ad\u03be \u03b3\u03b9\u03b1 \u03b5\u03c3\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03bf\u03cd\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03be\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03bf\u03cd\u03c2 \u03c7\u03ce\u03c1\u03bf\u03c5\u03c2<\/strong>\u00a0\u2014 \u03b1\u03ba\u03c1\u03c5\u03bb\u03b9\u03ba\u03ac, \u03c3\u03c4\u03c5\u03c1\u03bf\u03bb-\u03b1\u03ba\u03c1\u03c5\u03bb\u03b9\u03ba\u03ac, \u03b2\u03b9\u03bd\u03c5\u03bb-\u03b1\u03ba\u03c1\u03c5\u03bb\u03b9\u03ba\u03ac \u03ba\u03b1\u03b9 \u03ba\u03b1\u03b8\u03b1\u03c1\u03ac \u03b1\u03ba\u03c1\u03c5\u03bb\u03b9\u03ba\u03ac \u03c3\u03c5\u03bd\u03b4\u03b5\u03c4\u03b9\u03ba\u03ac. \u03a4\u03bf HEC \u03b5\u03be\u03b1\u03c3\u03c6\u03b1\u03bb\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b5\u03bd\u03b1\u03b9\u03ce\u03c1\u03b7\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c7\u03c1\u03c9\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd, \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03c1\u03bf\u03ae \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03c5\u03c6\u03ae \u03c4\u03bf\u03c5 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae \u03bc\u03b5 \u03c0\u03b9\u03bd\u03ad\u03bb\u03bf, \u03c3\u03b5 \u03b4\u03bf\u03c3\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 0,25\u20130,50%, \u03b1\u03bd\u03b5\u03be\u03ac\u03c1\u03c4\u03b7\u03c4\u03b1 \u03b1\u03c0\u03cc \u03c4\u03bf pH \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03b9\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c3\u03b5 \u03ac\u03bb\u03b1\u03c4\u03b1.<\/li>\n\n\n\n<li><strong>\u0391\u03c3\u03c4\u03ac\u03c1\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b5\u03b3\u03b1\u03bd\u03c9\u03c4\u03b9\u03ba\u03ac<\/strong>\u00a0\u2014 \u03cc\u03c0\u03bf\u03c5 \u03b7 \u03c7\u03b1\u03bc\u03b7\u03bb\u03ae \u03c4\u03b9\u03bc\u03ae KU \u03ba\u03b1\u03b9 \u03b7 \u03ba\u03b1\u03bb\u03ae \u03b4\u03b9\u03b1\u03b2\u03c1\u03bf\u03c7\u03ae \u03c4\u03bf\u03c5 \u03c5\u03c0\u03bf\u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03b7\u03bc\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac \u03ba\u03c1\u03b9\u03c4\u03ae\u03c1\u03b9\u03b1, \u03bf\u03b9 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 HEC \u03c7\u03b1\u03bc\u03b7\u03bb\u03bf\u03cd \u03b9\u03be\u03ce\u03b4\u03bf\u03c5\u03c2 (15.000\u201330.000 mPa\u00b7s) \u03bc\u03b5 0,20\u20130,35% \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03c4\u03bf \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf.<\/li>\n\n\n\n<li><strong>\u0395\u03c0\u03b9\u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2 \u03bc\u03b5 \u03c5\u03c6\u03ae \u03ba\u03b1\u03b9 \u03c3\u03bf\u03b2\u03ac\u03b4\u03b5\u03c2 \u03c3\u03b5 \u03c5\u03b3\u03c1\u03ae \u03bc\u03bf\u03c1\u03c6\u03ae<\/strong>\u00a0\u2014 \u03cc\u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03bc\u03b9\u03b1 \u03c0\u03b1\u03c7\u03b9\u03ac, \u03c8\u03b5\u03c5\u03b4\u03bf\u03c0\u03bb\u03b1\u03c3\u03c4\u03b9\u03ba\u03ae \u03c0\u03ac\u03c3\u03c4\u03b1\u00b7 \u03b1\u03c5\u03c4\u03cc \u03b5\u03c0\u03b9\u03c4\u03c5\u03b3\u03c7\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c5\u03c8\u03b7\u03bb\u03bf\u03cd \u03b9\u03be\u03ce\u03b4\u03bf\u03c5\u03c2 (50.000\u2013100.000 mPa\u00b7s).<\/li>\n\n\n\n<li><strong>\u0395\u03b9\u03b4\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2<\/strong>\u00a0\u2014 \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c5\u03c6\u03b1\u03c3\u03bc\u03ac\u03c4\u03c9\u03bd, \u03c6\u03b9\u03bd\u03b9\u03c1\u03af\u03c3\u03bc\u03b1\u03c4\u03b1 \u03b4\u03ad\u03c1\u03bc\u03b1\u03c4\u03bf\u03c2, \u03ba\u03cc\u03bb\u03bb\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03b2\u03b9\u03bf\u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03ba\u03ac \u03b1\u03c3\u03c4\u03ac\u03c1\u03b9\u03b1 \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03bf \u03bd\u03b5\u03c1\u03cc, \u03cc\u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b8\u03b1\u03c1\u03ae \u03c0\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03c0\u03bf\u03c5 \u03b4\u03b5\u03bd \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03b5\u03af \u03c0\u03b1\u03c1\u03b5\u03bc\u03b2\u03bf\u03bb\u03ad\u03c2.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u039f \u03bb\u03cc\u03b3\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03bf\u03c0\u03bf\u03af\u03bf \u03b5\u03c0\u03b9\u03bb\u03ad\u03b3\u03b5\u03c4\u03b1\u03b9 \u03c4\u03bf HEC \u03c3\u03b5 \u03b1\u03c5\u03c4\u03ad\u03c2 \u03c4\u03b9\u03c2 \u03c0\u03b5\u03c1\u03b9\u03c0\u03c4\u03ce\u03c3\u03b5\u03b9\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03cc\u03c4\u03b9: \u03bf \u03bc\u03b7\u03c7\u03b1\u03bd\u03b9\u03c3\u03bc\u03cc\u03c2 \u03c0\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7\u03c2 \u03c3\u03c4\u03b7\u03bd \u03c5\u03b4\u03b1\u03c4\u03b9\u03ba\u03ae \u03c6\u03ac\u03c3\u03b7 \u03b4\u03b5\u03bd \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03b5\u03af \u03ba\u03c1\u03bf\u03ba\u03af\u03b4\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03bb\u03b1\u03c4\u03ad\u03be, \u03c4\u03bf \u03b9\u03be\u03ce\u03b4\u03b5\u03c2 \u03c4\u03bf\u03c5 \u03b4\u03b5\u03bd \u03b5\u03c0\u03b7\u03c1\u03b5\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b1 \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03bf\u03b4\u03c1\u03b1\u03c3\u03c4\u03b9\u03ba\u03ac \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03b9\u03b1\u03c3\u03ba\u03bf\u03c1\u03c0\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03c0\u03bf\u03c5 \u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c7\u03c1\u03ce\u03bc\u03b1, \u03b5\u03bd\u03ce \u03b7 \u03c1\u03b5\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03c4\u03bf\u03c5 \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03b5\u03b9 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03b1\u03c0\u03cc \u03c0\u03b1\u03c1\u03c4\u03af\u03b4\u03b1 \u03c3\u03b5 \u03c0\u03b1\u03c1\u03c4\u03af\u03b4\u03b1. \u0388\u03bd\u03b1\u03c2 \u03c0\u03bb\u03ae\u03c1\u03b7\u03c2 \u03bf\u03b4\u03b7\u03b3\u03cc\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03b4\u03bf\u03c3\u03bf\u03bb\u03bf\u03b3\u03af\u03b5\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03ac\u03c1\u03b8\u03c1\u03bf \u03bc\u03b1\u03c2 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03bf HEC \u03c3\u03c4\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03bf \u03bd\u03b5\u03c1\u03cc.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u03a0\u03cc\u03c4\u03b5 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03bb\u03ad\u03be\u03b5\u03c4\u03b5 HPMC: \u03a3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03ba\u03bf\u03bd\u03b9\u03ac\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03b5\u03b9\u03b4\u03ce\u03bd \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03c9\u03bd<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/tenessy.com\/products\/hpmc-hydroxypropyl-methyl-cellulose\/\"><u>HPMC<\/u><\/a>&nbsp;\u03b5\u03af\u03bd\u03b1\u03b9 \u03bf \u03c4\u03c5\u03c0\u03b9\u03ba\u03cc\u03c2 \u03b1\u03b9\u03b8\u03ad\u03c1\u03b1\u03c2 \u03ba\u03c5\u03c4\u03c4\u03b1\u03c1\u03af\u03bd\u03b7\u03c2 \u03c3\u03c4\u03b7 \u03c7\u03b7\u03bc\u03b5\u03af\u03b1 \u03c4\u03c9\u03bd \u03b4\u03bf\u03bc\u03b9\u03ba\u03ce\u03bd \u03c5\u03bb\u03b9\u03ba\u03ce\u03bd, \u03b5\u03bd\u03ce \u03c4\u03b1 \u201c\u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1\u201d \u03c0\u03bf\u03c5 \u03c4\u03bf\u03bd \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03b5\u03b9\u03b4\u03ae:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u039a\u03cc\u03bb\u03bb\u03b5\u03c2 \u03c0\u03bb\u03b1\u03ba\u03b9\u03b4\u03af\u03c9\u03bd, \u03b5\u03c0\u03b9\u03c7\u03c1\u03af\u03c3\u03bc\u03b1\u03c4\u03b1 \u03ba\u03b1\u03b9 \u03c3\u03bf\u03b2\u03ac\u03b4\u03b5\u03c2 \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03bf \u03c4\u03c3\u03b9\u03bc\u03ad\u03bd\u03c4\u03bf<\/strong>\u00a0\u2014 \u03cc\u03c0\u03bf\u03c5 \u03b7 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03c4\u03b1\u03ba\u03c1\u03ac\u03c4\u03b7\u03c3\u03b7\u03c2 \u03bd\u03b5\u03c1\u03bf\u03cd \u03c4\u03b7\u03c2 HPMC (90\u201396% \u03c3\u03b5 \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 10 \u03bb\u03b5\u03c0\u03c4\u03ce\u03bd) \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03b5\u03af \u03c4\u03bf \u03c4\u03c3\u03b9\u03bc\u03ad\u03bd\u03c4\u03bf \u03b5\u03bd\u03c5\u03b4\u03b1\u03c4\u03c9\u03bc\u03ad\u03bd\u03bf \u03ba\u03b1\u03b9 \u03b5\u03cd\u03c0\u03bb\u03b1\u03c3\u03c4\u03bf\u00b7 \u03b7 HEC \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c6\u03c4\u03ac\u03c3\u03b5\u03b9 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03b5\u03c0\u03af\u03c0\u03b5\u03b4\u03bf.<\/li>\n\n\n\n<li><strong>\u0393\u03cd\u03c8\u03b9\u03bd\u03b1 \u03b5\u03c0\u03b9\u03c7\u03c1\u03af\u03c3\u03bc\u03b1\u03c4\u03b1, \u03c5\u03bb\u03b9\u03ba\u03ac \u03b1\u03c1\u03bc\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03bb\u03b5\u03c0\u03c4\u03ad\u03c2 \u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2<\/strong>\u00a0\u2014 \u039f\u03b9 \u03b9\u03b4\u03b9\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c0\u03b7\u03ba\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03c3\u03c7\u03b7\u03bc\u03b1\u03c4\u03b9\u03c3\u03bc\u03bf\u03cd \u03bc\u03b5\u03bc\u03b2\u03c1\u03ac\u03bd\u03b7\u03c2 \u03c4\u03bf\u03c5 HPMC \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03c4\u03ac\u03bb\u03bb\u03b7\u03bb\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03b3\u03cd\u03c8\u03bf\u03c5, \u03cc\u03c0\u03bf\u03c5 \u03b7 \u03b1\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03bd\u03b5\u03c1\u03bf\u03cd \u03c5\u03c0\u03bf\u03b2\u03b1\u03b8\u03bc\u03af\u03b6\u03b5\u03b9 \u03c4\u03b7 \u03c3\u03ba\u03bb\u03b7\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1\u03c2.<\/li>\n\n\n\n<li><strong>\u03a5\u03bb\u03b9\u03ba\u03ac \u03b1\u03c5\u03c4\u03bf\u03b5\u03c0\u03b9\u03c0\u03b5\u03b4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03bd\u03ad\u03bc\u03b1\u03c4\u03b1<\/strong>\u00a0\u2014 \u039c\u03b9\u03ba\u03c1\u03ad\u03c2 \u03b4\u03cc\u03c3\u03b5\u03b9\u03c2 HPMC (0,02\u20130,08%) \u03b1\u03c0\u03bf\u03c4\u03c1\u03ad\u03c0\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03b1\u03b9\u03bc\u03bf\u03c1\u03c1\u03b1\u03b3\u03af\u03b1 \u03ba\u03b1\u03b9 \u03c4\u03bf\u03bd \u03b4\u03b9\u03b1\u03c7\u03c9\u03c1\u03b9\u03c3\u03bc\u03cc.<\/li>\n\n\n\n<li><strong>\u03a5\u03b4\u03b1\u03c4\u03bf\u03c3\u03c4\u03b5\u03b3\u03b1\u03bd\u03c9\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c1\u03bf\u03c0\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b5\u03c2 \u03bc\u03b5 \u03c0\u03bf\u03bb\u03c5\u03bc\u03b5\u03c1\u03ae (\u03c4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03b5\u03b9\u03b4\u03b5\u03af\u03c2)<\/strong>\u00a0\u2014 \u03a4\u03bf HPMC \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03c4\u03bf \u03c5\u03b3\u03c1\u03cc \u03bc\u03b5\u03af\u03b3\u03bc\u03b1 \u03ba\u03b1\u03b9 \u03b2\u03b5\u03bb\u03c4\u03b9\u03ce\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c1\u03b3\u03b1\u03c3\u03b9\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03c9\u03bd \u03c4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03b5\u03b9\u03b4\u03ce\u03bd \u03bc\u03b5\u03bc\u03b2\u03c1\u03b1\u03bd\u03ce\u03bd \u03c0\u03bf\u03c5 \u03b5\u03c6\u03b1\u03c1\u03bc\u03cc\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03c0\u03b9\u03bd\u03ad\u03bb\u03bf \u03ae \u03c3\u03c0\u03ac\u03c4\u03bf\u03c5\u03bb\u03b1.<\/li>\n\n\n\n<li><strong>\u0392\u03ac\u03c3\u03b5\u03b9\u03c2 \u03b3\u03b9\u03b1 \u03b2\u03b1\u03c6\u03ae \u03bc\u03b5 \u03c3\u03ba\u03cc\u03bd\u03b7 \u03ba\u03b1\u03b9 \u03c5\u03bb\u03b9\u03ba\u03ac \u03c0\u03bb\u03ae\u03c1\u03c9\u03c3\u03b7\u03c2 \u03b1\u03c1\u03bc\u03ce\u03bd<\/strong>\u00a0\u2014 \u03cc\u03c0\u03bf\u03c5 \u03b7 \u03c3\u03ba\u03cc\u03bd\u03b7 \u03c4\u03bf\u03c5 \u03be\u03b7\u03c1\u03bf\u03cd \u03bc\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c3\u03ba\u03bf\u03c1\u03c0\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b1 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03bd\u03b1\u03c0\u03c4\u03cd\u03c3\u03c3\u03b5\u03b9 \u03b3\u03c1\u03ae\u03b3\u03bf\u03c1\u03b1 \u03b9\u03be\u03ce\u03b4\u03b5\u03c2 \u03c3\u03c4\u03bf \u03b5\u03c1\u03b3\u03bf\u03c4\u03ac\u03be\u03b9\u03bf.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/tenessy.com\/products\/hpmc-hydroxypropyl-methyl-cellulose\/hpmc-nh100pc\/\"><u>HPMC<\/u><\/a>&nbsp;is chosen because its primary job \u2014 holding water against a porous, thirsty substrate \u2014 is exactly what HEC cannot do. HEC is designed for latex paint; HPMC is designed for cement. Trying to use HEC in a cementitious coating means you get thickening without water retention, and the mortar dries out, cracks, and loses bond. Trying to use HPMC as the sole thickener in latex paint usually costs scrub resistance and risks latex destabilization.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u03a3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1 \u03bc\u03b9\u03ba\u03c4\u03ae\u03c2 \u03c7\u03c1\u03ae\u03c3\u03b7\u03c2: \u038c\u03c4\u03b1\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c0\u03bf\u03bb\u03c5\u03bc\u03b5\u03c1\u03ae \u03b5\u03bc\u03c6\u03b1\u03bd\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03bc\u03af\u03b1 \u03c3\u03cd\u03bd\u03b8\u03b5\u03c3\u03b7<\/strong><strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u039f\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b1 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03ba\u03b1\u03b8\u03b7\u03bc\u03b5\u03c1\u03b9\u03bd\u03ae\u03c2 \u03b6\u03c9\u03ae\u03c2 \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c0\u03bf\u03bb\u03c5\u03bc\u03b5\u03c1\u03ae, \u03ba\u03b1\u03b9 \u03b1\u03be\u03af\u03b6\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c0\u03ce\u03c2 \u03c3\u03c5\u03bd\u03c5\u03c0\u03ac\u03c1\u03c7\u03bf\u03c5\u03bd:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u03a4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03b5\u03b9\u03b4\u03b5\u03af\u03c2 \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2 \u03c4\u03c1\u03bf\u03c0\u03bf\u03c0\u03bf\u03b9\u03b7\u03bc\u03ad\u03bd\u03b5\u03c2 \u03bc\u03b5 \u03c0\u03bf\u03bb\u03c5\u03bc\u03b5\u03c1\u03ae \u03bc\u03b5 \u03c5\u03b3\u03c1\u03cc HEC<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u03a3\u03c4\u03b7\u03bd \u03c5\u03b3\u03c1\u03bf\u03bc\u03cc\u03bd\u03c9\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c3\u03c4\u03bf \u03b4\u03b9\u03b1\u03ba\u03bf\u03c3\u03bc\u03b7\u03c4\u03b9\u03ba\u03cc \u03c3\u03c4\u03cc\u03ba\u03bf, \u03bf\u03b9 \u03c0\u03b1\u03c1\u03b1\u03b3\u03c9\u03b3\u03bf\u03af \u03c3\u03c5\u03bd\u03b8\u03ad\u03c4\u03bf\u03c5\u03bd \u03bc\u03b5\u03c1\u03b9\u03ba\u03ad\u03c2 \u03c6\u03bf\u03c1\u03ad\u03c2 \u03ad\u03bd\u03b1 \u03c5\u03b3\u03c1\u03cc \u03c3\u03c5\u03bd\u03b4\u03b5\u03c4\u03b9\u03ba\u03cc \u03c5\u03bb\u03b9\u03ba\u03cc \u03c0\u03bf\u03c5 \u03ad\u03c7\u03b5\u03b9 \u03c0\u03c5\u03ba\u03bd\u03c9\u03b8\u03b5\u03af \u03bc\u03b5 HEC \u03ba\u03b1\u03b9, \u03c3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1, \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c4\u03bf\u03c5\u03bd \u03c4\u03c3\u03b9\u03bc\u03ad\u03bd\u03c4\u03bf \u03ba\u03b1\u03b9 \u03ac\u03bc\u03bc\u03bf \u03c3\u03c4\u03bf \u03b5\u03c1\u03b3\u03bf\u03c4\u03ac\u03be\u03b9\u03bf. \u03a4\u03bf HEC \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03c0\u03bf\u03b9\u03b5\u03af \u03c4\u03bf \u03c5\u03b3\u03c1\u03cc \u03c3\u03c5\u03bc\u03c0\u03cd\u03ba\u03bd\u03c9\u03bc\u03b1, \u03b5\u03bd\u03ce \u03c4\u03bf \u03be\u03b7\u03c1\u03cc \u03c3\u03c5\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03cc \u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03b5\u03b9 \u03c4\u03bf \u03b4\u03b9\u03ba\u03cc \u03c4\u03bf\u03c5 HPMC \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c5\u03b3\u03ba\u03c1\u03ac\u03c4\u03b7\u03c3\u03b7 \u03bd\u03b5\u03c1\u03bf\u03cd. \u0391\u03c5\u03c4\u03ae \u03b7 \u03b4\u03b9\u03b1\u03c7\u03c9\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03b7 \u03c3\u03cd\u03bd\u03b8\u03b5\u03c3\u03b7 \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c0\u03bf\u03bb\u03c5\u03bc\u03b5\u03c1\u03ae \u03b4\u03b5\u03bd \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c0\u03bf\u03c4\u03ad \u03bd\u03b1 \u03b5\u03ba\u03c4\u03b5\u03bb\u03bf\u03cd\u03bd \u03c4\u03bf \u03c1\u03cc\u03bb\u03bf \u03c4\u03bf\u03c5 \u03ac\u03bb\u03bb\u03bf\u03c5.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u03a5\u03b2\u03c1\u03b9\u03b4\u03b9\u03ba\u03ac \u03c0\u03c5\u03ba\u03bd\u03c9\u03c4\u03b9\u03ba\u03ac \u03c7\u03c1\u03c9\u03bc\u03ac\u03c4\u03c9\u03bd<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u03a4\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03bf\u03cd\u03bd \u03c4\u03cc\u03c3\u03bf \u03b4\u03bf\u03bc\u03ae \u03cc\u03c3\u03bf \u03ba\u03b1\u03b9 \u03b5\u03be\u03bf\u03bc\u03ac\u03bb\u03c5\u03bd\u03c3\u03b7 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd HEC (\u03b4\u03bf\u03bc\u03ae) \u03c3\u03b5 \u03c3\u03c5\u03bd\u03b4\u03c5\u03b1\u03c3\u03bc\u03cc \u03bc\u03b5 \u03ad\u03bd\u03b1 \u03c3\u03c5\u03c3\u03c7\u03b5\u03c4\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03c0\u03c5\u03ba\u03bd\u03c9\u03c4\u03b9\u03ba\u03cc (HASE\/HEUR). \u03a3\u03b5 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03c3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1 \u03c4\u03bf HPMC \u03b4\u03b5\u03bd \u03c0\u03b1\u03af\u03b6\u03b5\u03b9 \u03ba\u03b1\u03bd\u03ad\u03bd\u03b1 \u03c1\u03cc\u03bb\u03bf \u2014 \u03b1\u03bb\u03bb\u03ac \u03b5\u03af\u03bd\u03b1\u03b9 \u03b4\u03b9\u03b4\u03b1\u03ba\u03c4\u03b9\u03ba\u03cc \u03bd\u03b1 \u03ba\u03b1\u03c4\u03b1\u03bd\u03bf\u03ae\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03bf \u03b3\u03b9\u03b1\u03c4\u03af: \u03c4\u03bf \u03c3\u03c5\u03c3\u03c7\u03b5\u03c4\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03c0\u03c5\u03ba\u03bd\u03c9\u03c4\u03b9\u03ba\u03cc \u03c0\u03c1\u03bf\u03c3\u03c4\u03af\u03b8\u03b5\u03c4\u03b1\u03b9 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03ae\u03c3\u03b5\u03b9 \u03c4\u03bf \u03b9\u03be\u03ce\u03b4\u03b5\u03c2 \u03bc\u03ad\u03c3\u03b7\u03c2 \u03b4\u03b9\u03ac\u03c4\u03bc\u03b7\u03c3\u03b7\u03c2 \u03c0\u03bf\u03c5 \u03c3\u03c4\u03b5\u03c1\u03b5\u03af\u03c4\u03b1\u03b9 \u03c4\u03bf HEC, \u03ad\u03bd\u03b1 \u03ba\u03b5\u03bd\u03cc \u03c0\u03bf\u03c5 \u03c4\u03bf HPMC \u03b4\u03b5\u03bd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03ba\u03b1\u03bb\u03cd\u03c8\u03b5\u03b9 \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03b7 \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03b1\u03ba\u03ae \u03c4\u03bf\u03c5 \u03b4\u03c1\u03b1\u03c3\u03c4\u03b7\u03c1\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b8\u03b1 \u03b1\u03c0\u03bf\u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03c3\u03b5 \u03c4\u03bf \u03bb\u03b1\u03c4\u03ad\u03be.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u039c\u03af\u03b3\u03bc\u03b1\u03c4\u03b1 \u03b3\u03cd\u03c8\u03bf\u03c5 \u03ba\u03b1\u03b9 \u03ba\u03c5\u03c4\u03c4\u03b1\u03c1\u03af\u03bd\u03b7\u03c2<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u03a3\u03c4\u03b1 \u03b5\u03c0\u03b9\u03c7\u03c1\u03af\u03c3\u03bc\u03b1\u03c4\u03b1 \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03bf\u03bd \u03b3\u03cd\u03c8\u03bf \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03c3\u03c5\u03c7\u03bd\u03ac \u03c4\u03bf HPMC \u03c9\u03c2 \u03b2\u03b1\u03c3\u03b9\u03ba\u03cc \u03c3\u03c5\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03cc, \u03bc\u03b5 \u03bc\u03b9\u03ba\u03c1\u03ae \u03c0\u03c1\u03bf\u03c3\u03b8\u03ae\u03ba\u03b7 \u03b1\u03b9\u03b8\u03ad\u03c1\u03b1 \u03b1\u03bc\u03cd\u03bb\u03bf\u03c5. \u039f\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf\u03b9 \u03c0\u03b1\u03c1\u03b1\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03c4\u03ad\u03c2 \u03b1\u03bd\u03b1\u03bc\u03b9\u03b3\u03bd\u03cd\u03bf\u03c5\u03bd \u03ad\u03bd\u03b1 \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc HEC \u03c3\u03c4\u03bf HPMC \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c1\u03c5\u03b8\u03bc\u03af\u03c3\u03bf\u03c5\u03bd \u03c4\u03b7 \u03c1\u03bf\u03ae \u03c7\u03c9\u03c1\u03af\u03c2 \u03bd\u03b1 \u03b8\u03c5\u03c3\u03b9\u03ac\u03c3\u03bf\u03c5\u03bd \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03ba\u03c1\u03ac\u03c4\u03b7\u03c3\u03b7 \u03bd\u03b5\u03c1\u03bf\u03cd \u2014 \u03c4\u03bf HEC \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03ba\u03b1\u03b8\u03b1\u03c1\u03cc \u03c0\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7 \u03b1\u03bd\u03b5\u03be\u03ac\u03c1\u03c4\u03b7\u03c4\u03b7 \u03b1\u03c0\u03cc \u03c4\u03b1 \u03ac\u03bb\u03b1\u03c4\u03b1, \u03b5\u03bd\u03ce \u03c4\u03bf HPMC \u03b4\u03b9\u03b1\u03c4\u03b7\u03c1\u03b5\u03af \u03c4\u03bf \u03bd\u03b5\u03c1\u03cc \u03b5\u03ba\u03b5\u03af \u03cc\u03c0\u03bf\u03c5 \u03c4\u03bf \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03bf \u03b3\u03cd\u03c8\u03bf\u03c2. \u0394\u03b9\u03b1\u03c4\u03b7\u03c1\u03ae\u03c3\u03c4\u03b5 \u03c4\u03bf HEC \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc \u03c4\u03bf 30% \u03c4\u03bf\u03c5 \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03bf\u03cd \u03b1\u03b9\u03b8\u03ad\u03c1\u03b1 \u03ba\u03c5\u03c4\u03c4\u03b1\u03c1\u03af\u03bd\u03b7\u03c2, \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03b7 \u03ba\u03b1\u03c4\u03b1\u03ba\u03c1\u03ac\u03c4\u03b7\u03c3\u03b7 \u03bd\u03b5\u03c1\u03bf\u03cd \u03b8\u03b1 \u03c0\u03ad\u03c3\u03b5\u03b9 \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03b4\u03b9\u03b1\u03b3\u03c1\u03b1\u03c6\u03ad\u03c2.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u03a0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03bf\u03af \u03ba\u03b1\u03bd\u03cc\u03bd\u03b5\u03c2 \u03bc\u03af\u03be\u03b7\u03c2<\/strong><strong><\/strong><\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u039c\u03b7\u03bd \u03b1\u03bd\u03b1\u03bc\u03b9\u03b3\u03bd\u03cd\u03b5\u03c4\u03b5 \u03b5\u03ba \u03c4\u03c9\u03bd \u03c0\u03c1\u03bf\u03c4\u03ad\u03c1\u03c9\u03bd \u03b4\u03b9\u03b1\u03bb\u03cd\u03bc\u03b1\u03c4\u03b1 HEC \u03ba\u03b1\u03b9 HPMC \u03c3\u03b5 \u03c5\u03c8\u03b7\u03bb\u03ae \u03c3\u03c5\u03b3\u03ba\u03ad\u03bd\u03c4\u03c1\u03c9\u03c3\u03b7\u00b7 \u03b7 \u03c3\u03cd\u03bc\u03c0\u03bb\u03b5\u03be\u03ae \u03c4\u03bf\u03c5\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c0\u03c1\u03bf\u03ba\u03b1\u03bb\u03ad\u03c3\u03b5\u03b9 \u03c4\u03b7 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03c3\u03b2\u03ce\u03bb\u03c9\u03bd \u03c0\u03b7\u03ba\u03c4\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2. \u03a0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c3\u03c4\u03b5 \u03ba\u03ac\u03b8\u03b5 \u03c3\u03ba\u03cc\u03bd\u03b7 \u03be\u03b5\u03c7\u03c9\u03c1\u03b9\u03c3\u03c4\u03ac \u03c3\u03c4\u03bf \u03bd\u03b5\u03c1\u03cc \u03ae \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03c4\u03b5 \u03c4\u03cd\u03c0\u03bf\u03c5\u03c2 \u03bc\u03b5 \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03b1\u03ba\u03ae \u03b5\u03c0\u03b5\u03be\u03b5\u03c1\u03b3\u03b1\u03c3\u03af\u03b1 \u03c3\u03b5 \u03be\u03b7\u03c1\u03ae \u03b1\u03bd\u03ac\u03bc\u03b9\u03be\u03b7.<\/li>\n\n\n\n<li>\u038c\u03c4\u03b1\u03bd \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c3\u03c5\u03c3\u03c4\u03b1\u03c4\u03b9\u03ba\u03ac \u03c0\u03b5\u03c1\u03b9\u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03be\u03b7\u03c1\u03cc \u03bc\u03b5\u03af\u03b3\u03bc\u03b1, \u03b2\u03b5\u03b2\u03b1\u03b9\u03c9\u03b8\u03b5\u03af\u03c4\u03b5 \u03cc\u03c4\u03b9 \u03c4\u03bf \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd \u03b4\u03b5\u03bd \u03b4\u03b9\u03b1\u03c7\u03c9\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b1\u03bd\u03ac\u03bb\u03bf\u03b3\u03b1 \u03bc\u03b5 \u03c4\u03bf \u03bc\u03ad\u03b3\u03b5\u03b8\u03bf\u03c2 \u03c4\u03c9\u03bd \u03c3\u03c9\u03bc\u03b1\u03c4\u03b9\u03b4\u03af\u03c9\u03bd \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7 \u03bc\u03b5\u03c4\u03b1\u03c6\u03bf\u03c1\u03ac \u2014 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03cd\u03bf \u03b5\u03af\u03bd\u03b1\u03b9 \u03bb\u03b5\u03c0\u03c4\u03ad\u03c2 \u03c3\u03ba\u03cc\u03bd\u03b5\u03c2 \u03bc\u03b5 \u03c0\u03b1\u03c1\u03cc\u03bc\u03bf\u03b9\u03b5\u03c2 \u03c0\u03c5\u03ba\u03bd\u03cc\u03c4\u03b7\u03c4\u03b5\u03c2 \u03cc\u03b3\u03ba\u03bf\u03c5, \u03bf\u03c0\u03cc\u03c4\u03b5 \u03b1\u03c5\u03c4\u03cc \u03c3\u03c0\u03ac\u03bd\u03b9\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1.<\/li>\n\n\n\n<li>\u0395\u03c0\u03b1\u03bd\u03b1\u03bb\u03ac\u03b2\u03b5\u03c4\u03b5 \u03c4\u03b9\u03c2 \u03b4\u03bf\u03ba\u03b9\u03bc\u03ad\u03c2 \u03ba\u03b1\u03c4\u03b1\u03ba\u03c1\u03ac\u03c4\u03b7\u03c3\u03b7\u03c2 \u03bd\u03b5\u03c1\u03bf\u03cd, \u03c7\u03c1\u03cc\u03bd\u03bf\u03c5 \u03b1\u03bd\u03bf\u03af\u03b3\u03bc\u03b1\u03c4\u03bf\u03c2 \u03ba\u03b1\u03b9 \u03b9\u03b4\u03b9\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd \u03c4\u03bf\u03c5 \u03c6\u03b9\u03bb\u03bc \u03ba\u03ac\u03b8\u03b5 \u03c6\u03bf\u03c1\u03ac \u03c0\u03bf\u03c5 \u03b7 \u03b1\u03bd\u03b1\u03bb\u03bf\u03b3\u03af\u03b1 HEC:HPMC \u03bc\u03b5\u03c4\u03b1\u03b2\u03ac\u03bb\u03bb\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03c4\u03ac \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc 10%.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u03a0\u03ce\u03c2 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03bb\u03ad\u03be\u03b5\u03c4\u03b5: \u0388\u03bd\u03b1 \u03c0\u03bb\u03b1\u03af\u03c3\u03b9\u03bf \u03bb\u03ae\u03c8\u03b7\u03c2 \u03b1\u03c0\u03bf\u03c6\u03ac\u03c3\u03b5\u03c9\u03bd<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0391\u03bd \u03b5\u03be\u03b5\u03c4\u03ac\u03b6\u03b5\u03c4\u03b5 \u03bc\u03b9\u03b1 \u03c3\u03cd\u03bd\u03b8\u03b5\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b1\u03bd\u03b1\u03c1\u03c9\u03c4\u03b9\u03ad\u03c3\u03c4\u03b5 \u03c0\u03bf\u03b9\u03bf\u03bd \u03b1\u03b9\u03b8\u03ad\u03c1\u03b1 \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03c4\u03b5, \u03b1\u03c0\u03b1\u03bd\u03c4\u03ae\u03c3\u03c4\u03b5 \u03c3\u03c4\u03b9\u03c2 \u03b1\u03ba\u03cc\u03bb\u03bf\u03c5\u03b8\u03b5\u03c2 \u03c0\u03ad\u03bd\u03c4\u03b5 \u03b5\u03c1\u03c9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u03a4\u03bf \u03c3\u03c5\u03bd\u03b4\u03b5\u03c4\u03b9\u03ba\u03cc \u03c5\u03bb\u03b9\u03ba\u03cc \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03b5\u03b9\u03b4\u03ad\u03c2 \u03ae \u03bb\u03b1\u03c4\u03ad\u03be;<\/strong>\u00a0\u03a4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03b5\u03b9\u03b4\u03ad\u03c2 \u2192 HPMC. \u039b\u03b1\u03c4\u03ad\u03be \u2192 HEC. \u0391\u03c5\u03c4\u03ae \u03b7 \u03bc\u03af\u03b1 \u03b5\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 \u03ba\u03b1\u03b8\u03bf\u03c1\u03af\u03b6\u03b5\u03b9 \u03c4\u03bf 90% \u03c4\u03c9\u03bd \u03c0\u03b5\u03c1\u03b9\u03c0\u03c4\u03ce\u03c3\u03b5\u03c9\u03bd.<\/li>\n\n\n\n<li><strong>\u03a0\u03bf\u03b9\u03bf\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf \u03c4\u03c1\u03cc\u03c0\u03bf\u03c2 \u03b1\u03c3\u03c4\u03bf\u03c7\u03af\u03b1\u03c2 \u03c0\u03bf\u03c5 \u03c0\u03c1\u03bf\u03c3\u03c0\u03b1\u03b8\u03b5\u03af\u03c4\u03b5 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03bb\u03cd\u03c3\u03b5\u03c4\u03b5;<\/strong>\u00a0\u0391\u03c0\u03ce\u03bb\u03b5\u03b9\u03b1 \u03bd\u03b5\u03c1\u03bf\u03cd \u03ba\u03b1\u03b9 \u03c3\u03cd\u03bd\u03c4\u03bf\u03bc\u03bf\u03c2 \u03c7\u03c1\u03cc\u03bd\u03bf\u03c2 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae\u03c2 \u2192 \u0399\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03ba\u03b1\u03c4\u03b1\u03ba\u03c1\u03ac\u03c4\u03b7\u03c3\u03b7\u03c2 \u03bd\u03b5\u03c1\u03bf\u03cd \u03c4\u03bf\u03c5 HPMC. \u039a\u03b1\u03b8\u03af\u03b6\u03b7\u03c3\u03b7, \u03c7\u03b1\u03bb\u03ac\u03c1\u03c9\u03c3\u03b7 \u03ae \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03c3\u03b2\u03ce\u03bb\u03c9\u03bd \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ae \u03c4\u03bf\u03c5 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2 \u2192 \u0394\u03bf\u03bc\u03ae \u03c7\u03b1\u03bc\u03b7\u03bb\u03ae\u03c2 \u03b4\u03b9\u03ac\u03c4\u03bc\u03b7\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 HEC.<\/li>\n\n\n\n<li><strong>\u03a0\u03b5\u03c1\u03b9\u03ad\u03c7\u03b5\u03b9 \u03c4\u03bf \u03c3\u03ba\u03b5\u03cd\u03b1\u03c3\u03bc\u03b1 \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03bf\u03b4\u03c1\u03b1\u03c3\u03c4\u03b9\u03ba\u03ad\u03c2 \u03bf\u03c5\u03c3\u03af\u03b5\u03c2 \u03ae \u03c5\u03c8\u03b7\u03bb\u03ae \u03c0\u03b5\u03c1\u03b9\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c3\u03b5 \u03ac\u03bb\u03b1\u03c4\u03b1;<\/strong>\u00a0\u039a\u03b1\u03b9 \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c4\u03b1 \u03b1\u03bd\u03ad\u03c7\u03bf\u03bd\u03c4\u03b1\u03b9, \u03b1\u03bb\u03bb\u03ac \u03c4\u03bf HEC \u03b1\u03bd\u03ad\u03c7\u03b5\u03c4\u03b1\u03b9 \u03ad\u03bd\u03b1 \u03b5\u03c5\u03c1\u03cd\u03c4\u03b5\u03c1\u03bf \u03c6\u03ac\u03c3\u03bc\u03b1 \u03c3\u03c5\u03bd\u03b8\u03b7\u03ba\u03ce\u03bd\u00b7 \u03b1\u03bd \u03c4\u03bf \u03c7\u03c1\u03ce\u03bc\u03b1 \u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03b5\u03b9 \u03b1\u03c3\u03c5\u03bd\u03ae\u03b8\u03b9\u03c3\u03c4\u03b1 \u03bc\u03b5\u03af\u03b3\u03bc\u03b1\u03c4\u03b1 \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03bf\u03b4\u03c1\u03b1\u03c3\u03c4\u03b9\u03ba\u03ce\u03bd \u03bf\u03c5\u03c3\u03b9\u03ce\u03bd, \u03c4\u03bf HEC \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03c4\u03b7\u03bd \u03b1\u03c3\u03c6\u03b1\u03bb\u03ad\u03c3\u03c4\u03b5\u03c1\u03b7 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae.<\/li>\n\n\n\n<li><strong>\u03a0\u03bf\u03b9\u03bf\u03b9 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf\u03b9 \u03c3\u03c4\u03cc\u03c7\u03bf\u03b9 \u03cc\u03c3\u03bf\u03bd \u03b1\u03c6\u03bf\u03c1\u03ac \u03c4\u03b7\u03bd \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7 \u03c4\u03c9\u03bd \u03c4\u03b1\u03b9\u03bd\u03b9\u03ce\u03bd;<\/strong>\u00a0\u0397 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae\u03c2 \u03c3\u03b5 \u03c5\u03b3\u03c1\u03cc \u03c4\u03c1\u03af\u03c8\u03b9\u03bc\u03bf (ASTM D2486) \u03ba\u03b1\u03b9 \u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03bf \u03bd\u03b5\u03c1\u03cc \u03b5\u03c5\u03bd\u03bf\u03bf\u03cd\u03bd \u03c4\u03bf HEC \u03c3\u03c4\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1\u00b7 \u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c5\u03b3\u03ba\u03cc\u03bb\u03bb\u03b7\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 \u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b9\u03c2 \u03c1\u03c9\u03b3\u03bc\u03ad\u03c2 \u03b5\u03c5\u03bd\u03bf\u03bf\u03cd\u03bd \u03c4\u03bf HPMC \u03c3\u03c4\u03bf \u03ba\u03bf\u03bd\u03af\u03b1\u03bc\u03b1.<\/li>\n\n\n\n<li><strong>\u039c\u03c0\u03bf\u03c1\u03b5\u03af\u03c2 \u03bd\u03b1 \u03c4\u03b1 \u03c3\u03c5\u03bd\u03b4\u03c5\u03ac\u03c3\u03b5\u03b9\u03c2;<\/strong>\u00a0\u0395\u03ac\u03bd \u03ad\u03bd\u03b1 \u03bc\u03cc\u03bd\u03bf \u03c0\u03bf\u03bb\u03c5\u03bc\u03b5\u03c1\u03ad\u03c2 \u03b4\u03b5\u03bd \u03b1\u03bd\u03c4\u03b1\u03c0\u03bf\u03ba\u03c1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b9\u03c2 \u03b1\u03c0\u03b1\u03b9\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2 \u03b5\u03bd\u03cc\u03c2 \u03c3\u03c5\u03b3\u03ba\u03b5\u03ba\u03c1\u03b9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03c3\u03c4\u03cc\u03c7\u03bf\u03c5, \u03ad\u03bd\u03b1 \u03bc\u03b5\u03af\u03b3\u03bc\u03b1 (HEC + \u03c3\u03c5\u03c3\u03c3\u03c9\u03bc\u03b1\u03c4\u03c9\u03c4\u03b9\u03ba\u03cc \u03c0\u03c5\u03ba\u03bd\u03c9\u03c4\u03b9\u03ba\u03cc, \u03ae HPMC + \u03bc\u03b9\u03ba\u03c1\u03ae \u03c0\u03bf\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1 HEC \u03c3\u03b5 \u03b3\u03cd\u03c8\u03bf) \u03b5\u03af\u03bd\u03b1\u03b9 \u03c3\u03c5\u03c7\u03bd\u03ac \u03c6\u03b8\u03b7\u03bd\u03cc\u03c4\u03b5\u03c1\u03bf \u03ba\u03b1\u03b9 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03b1\u03bb\u03bb\u03b1\u03b3\u03ae \u03c4\u03c9\u03bd \u03c4\u03cd\u03c0\u03c9\u03bd.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u039c\u03b9\u03b1 \u03c0\u03c1\u03b1\u03ba\u03c4\u03b9\u03ba\u03ae \u03c3\u03c5\u03bc\u03b2\u03bf\u03c5\u03bb\u03ae: \u03bc\u03b7\u03bd \u03c3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03b5\u03c4\u03b5 \u03c0\u03bf\u03c4\u03ad \u03bc\u03b9\u03b1 \u03bc\u03b5\u03bc\u03bf\u03bd\u03c9\u03bc\u03ad\u03bd\u03b7 \u03b4\u03bf\u03c3\u03bf\u03bb\u03bf\u03b3\u03af\u03b1. \u0395\u03c0\u03b5\u03b9\u03b4\u03ae \u03c4\u03b1 \u03b4\u03cd\u03bf \u03c0\u03bf\u03bb\u03c5\u03bc\u03b5\u03c1\u03ae \u03b4\u03b9\u03b1\u03c6\u03ad\u03c1\u03bf\u03c5\u03bd \u03c9\u03c2 \u03c0\u03c1\u03bf\u03c2 \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c0\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7\u03c2, \u03b7 \u03c3\u03c9\u03c3\u03c4\u03ae \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03b3\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03b7\u03bd \u201c\u03af\u03c3\u03b7 \u03c4\u03b9\u03bc\u03ae KU\u201d \u03ba\u03b1\u03b9 \u03cc\u03c7\u03b9 \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03bf \u201c\u03af\u03c3\u03bf \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc \u03ba\u03b1\u03c4\u03ac \u03b2\u03ac\u03c1\u03bf\u03c2\u201d. \u039c\u03b5\u03c4\u03c1\u03ae\u03c3\u03c4\u03b5 \u03c4\u03b7 \u03b4\u03bf\u03c3\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af \u03ba\u03ac\u03b8\u03b5 \u03c0\u03bf\u03bb\u03c5\u03bc\u03b5\u03c1\u03ad\u03c2 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03c4\u03b5\u03c5\u03c7\u03b8\u03b5\u03af \u03c4\u03bf \u03b5\u03c0\u03b9\u03b8\u03c5\u03bc\u03b7\u03c4\u03cc \u03b9\u03be\u03ce\u03b4\u03b5\u03c2 \u03ba\u03b1\u03b9, \u03c3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03c7\u03b5\u03b9\u03b1, \u03c3\u03c5\u03b3\u03ba\u03c1\u03af\u03bd\u03b5\u03c4\u03b5 \u03c4\u03b7 \u03c7\u03b1\u03bb\u03ac\u03c1\u03c9\u03c3\u03b7, \u03c4\u03b7\u03bd \u03b5\u03be\u03bf\u03bc\u03ac\u03bb\u03c5\u03bd\u03c3\u03b7, \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03bf \u03c4\u03c1\u03af\u03c8\u03b9\u03bc\u03bf \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03ba\u03c1\u03ac\u03c4\u03b7\u03c3\u03b7 \u03bd\u03b5\u03c1\u03bf\u03cd \u03c3\u03b5 \u03b1\u03c5\u03c4\u03cc \u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u03a3\u03a5\u03a7\u039d\u0388\u03a3 \u0395\u03a1\u03a9\u03a4\u0389\u03a3\u0395\u0399\u03a3<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u0395\u03c1. 1: \u039c\u03c0\u03bf\u03c1\u03ce \u03bd\u03b1 \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03c4\u03b1\u03c3\u03c4\u03ae\u03c3\u03c9 \u03c4\u03bf HEC \u03bc\u03b5 HPMC \u03c3\u03b5 \u03b2\u03b1\u03c6\u03ae \u03bb\u03b1\u03c4\u03ad\u03be;<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0391: \u03a4\u03b5\u03c7\u03bd\u03b9\u03ba\u03ac \u03bd\u03b1\u03b9, \u03b1\u03bb\u03bb\u03ac \u03b4\u03b5\u03bd \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03b5\u03c1\u03b9\u03bc\u03ad\u03bd\u03b5\u03c4\u03b5 \u03b9\u03c3\u03bf\u03b4\u03cd\u03bd\u03b1\u03bc\u03b7 \u03b1\u03c0\u03cc\u03b4\u03bf\u03c3\u03b7. \u03a4\u03bf HPMC \u03b5\u03af\u03bd\u03b1\u03b9 \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03bf\u03b4\u03c1\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03bb\u03cc\u03b3\u03c9 \u03c4\u03c9\u03bd \u03bc\u03b5\u03b8\u03bf\u03be\u03c5\u03bf\u03bc\u03ac\u03b4\u03c9\u03bd \u03c4\u03bf\u03c5, \u03bf\u03c0\u03cc\u03c4\u03b5 \u03c3\u03b5 \u03af\u03c3\u03b7 \u03b4\u03bf\u03c3\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b1\u03c0\u03bf\u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b5\u03b9 \u03c4\u03bf \u03bb\u03b1\u03c4\u03ad\u03be, \u03bd\u03b1 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03ae\u03c3\u03b5\u03b9 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c6\u03c1\u03cc \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03bc\u03b1\u03bb\u03b1\u03ba\u03ce\u03c3\u03b5\u03b9 \u03c4\u03bf \u03be\u03b7\u03c1\u03cc \u03c6\u03b9\u03bb\u03bc \u2014 \u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03bf \u03c4\u03c1\u03af\u03c8\u03b9\u03bc\u03bf \u03b5\u03bd\u03ce \u03b5\u03af\u03bd\u03b1\u03b9 \u03c5\u03b3\u03c1\u03cc \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9. \u0395\u03ac\u03bd \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03ac\u03bd\u03b5\u03c4\u03b5 \u03b1\u03bb\u03bb\u03b1\u03b3\u03ae, \u03bc\u03b5\u03b9\u03ce\u03c3\u03c4\u03b5 \u03c4\u03b7 \u03b4\u03bf\u03c3\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03ba\u03b1\u03c4\u03ac 20\u201340% (\u03c4\u03bf HPMC \u03b5\u03af\u03bd\u03b1\u03b9 \u03bb\u03b9\u03b3\u03cc\u03c4\u03b5\u03c1\u03bf \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc), \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c3\u03c4\u03b5 \u03ad\u03bd\u03b1\u03bd \u03b1\u03bd\u03c4\u03b9\u03b1\u03c6\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03cc \u03c0\u03b1\u03c1\u03ac\u03b3\u03bf\u03bd\u03c4\u03b1, \u03b5\u03c0\u03b1\u03bd\u03b1\u03b5\u03bb\u03ad\u03b3\u03be\u03c4\u03b5 \u03c4\u03bf KU \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03bf \u03c4\u03c1\u03af\u03c8\u03b9\u03bc\u03bf \u03ba\u03b1\u03b9 \u03b2\u03b5\u03b2\u03b1\u03b9\u03c9\u03b8\u03b5\u03af\u03c4\u03b5 \u03cc\u03c4\u03b9 \u03c4\u03bf \u03c7\u03c1\u03ce\u03bc\u03b1 \u03c0\u03bb\u03b7\u03c1\u03bf\u03af \u03c4\u03b9\u03c2 \u03c0\u03c1\u03bf\u03b4\u03b9\u03b1\u03b3\u03c1\u03b1\u03c6\u03ad\u03c2 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7. \u0393\u03b9\u03b1 \u03c4\u03b1 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03bb\u03b1\u03c4\u03ad\u03be, \u03c4\u03bf HEC (\u03ae \u03c4\u03bf HEC + \u03c3\u03c5\u03bd\u03b4\u03b5\u03c4\u03b9\u03ba\u03cc \u03c0\u03c5\u03ba\u03bd\u03c9\u03c4\u03b9\u03ba\u03cc) \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03b5\u03b9 \u03b7 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b5\u03c0\u03b9\u03bb\u03bf\u03b3\u03ae.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u0395\u03c1. 2: \u0393\u03b9\u03b1\u03c4\u03af \u03c4\u03bf HEC \u03b4\u03b5\u03bd \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b5\u03af\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03ba\u03cd\u03c1\u03b9\u03bf \u03c0\u03c5\u03ba\u03bd\u03c9\u03c4\u03b9\u03ba\u03cc \u03c3\u03b5 \u03c4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03b5\u03b9\u03b4\u03b5\u03af\u03c2 \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2;<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0391: \u0395\u03c0\u03b5\u03b9\u03b4\u03ae \u03c4\u03bf HEC \u03c3\u03c4\u03b5\u03c1\u03b5\u03af\u03c4\u03b1\u03b9 \u03c4\u03b7\u03c2 \u03b9\u03ba\u03b1\u03bd\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03ba\u03b1\u03c4\u03b1\u03ba\u03c1\u03ac\u03c4\u03b7\u03c3\u03b7\u03c2 \u03bd\u03b5\u03c1\u03bf\u03cd, \u03b7 \u03bf\u03c0\u03bf\u03af\u03b1 \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03af \u03c4\u03b7 \u03b2\u03b1\u03c3\u03b9\u03ba\u03ae \u03bb\u03b5\u03b9\u03c4\u03bf\u03c5\u03c1\u03b3\u03af\u03b1 \u03b5\u03bd\u03cc\u03c2 \u03b1\u03b9\u03b8\u03ad\u03c1\u03b1 \u03ba\u03c5\u03c4\u03c4\u03b1\u03c1\u03af\u03bd\u03b7\u03c2 \u03c3\u03c4\u03b1 \u03c4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03b5\u03b9\u03b4\u03ae \u03c3\u03c5\u03c3\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1. \u03a4\u03bf HEC \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03b9 \u03c4\u03bf \u03b9\u03be\u03ce\u03b4\u03b5\u03c2 \u03c3\u03c4\u03b7 \u03c6\u03ac\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03bd\u03b5\u03c1\u03bf\u03cd, \u03b1\u03bb\u03bb\u03ac \u03b4\u03b5\u03bd \u03b4\u03b5\u03c3\u03bc\u03b5\u03cd\u03b5\u03b9 \u03c4\u03bf \u03bd\u03b5\u03c1\u03cc \u03c0\u03ac\u03bd\u03c9 \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03c0\u03bf\u03c1\u03ce\u03b4\u03b5\u03c2 \u03c5\u03c0\u03cc\u03c3\u03c4\u03c1\u03c9\u03bc\u03b1 \u03cc\u03c0\u03c9\u03c2 \u03ba\u03ac\u03bd\u03b5\u03b9 \u03c4\u03bf HPMC \u2014 \u03ad\u03bd\u03b1 \u03c4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03b5\u03b9\u03b4\u03ad\u03c2 \u03b5\u03c0\u03af\u03c7\u03c1\u03b9\u03c3\u03bc\u03b1 \u03bc\u03b5 HEC \u03c7\u03ac\u03bd\u03b5\u03b9 \u03bd\u03b5\u03c1\u03cc \u03c0\u03c1\u03bf\u03c2 \u03c4\u03bf \u03c4\u03bf\u03cd\u03b2\u03bb\u03bf \u03bc\u03ad\u03c3\u03b1 \u03c3\u03b5 \u03bb\u03af\u03b3\u03b1 \u03bb\u03b5\u03c0\u03c4\u03ac, \u03c5\u03b4\u03c1\u03b1\u03c4\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b1\u03bd\u03b5\u03c0\u03b1\u03c1\u03ba\u03ce\u03c2 \u03ba\u03b1\u03b9 \u03c7\u03ac\u03bd\u03b5\u03b9 \u03c4\u03b7\u03bd \u03c0\u03c1\u03cc\u03c3\u03c6\u03c5\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03b1\u03ba\u03ae \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c4\u03bf\u03c5. \u03a4\u03bf HPMC \u03c3\u03c5\u03b3\u03ba\u03c1\u03b1\u03c4\u03b5\u03af 90\u201396% \u03bd\u03b5\u03c1\u03bf\u03cd \u03b1\u03bd\u03ac\u03bc\u03b9\u03be\u03b7\u03c2 \u03c3\u03b5 \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 10 \u03bb\u03b5\u03c0\u03c4\u03ce\u03bd (\u03bc\u03ad\u03b8\u03bf\u03b4\u03bf\u03c2 \u03c6\u03af\u03bb\u03c4\u03c1\u03bf\u03c5 \u03c7\u03b1\u03c1\u03c4\u03b9\u03bf\u03cd), \u03ba\u03ac\u03c4\u03b9 \u03c0\u03bf\u03c5 \u03b1\u03c0\u03b1\u03b9\u03c4\u03b5\u03af\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c4\u03c3\u03b9\u03bc\u03b5\u03bd\u03c4\u03bf\u03b5\u03b9\u03b4\u03b5\u03af\u03c2 \u03b5\u03c0\u03b9\u03c3\u03c4\u03c1\u03ce\u03c3\u03b5\u03b9\u03c2. \u039f \u03c1\u03cc\u03bb\u03bf\u03c2 \u03c4\u03bf\u03c5 HEC \u03c3\u03b5 \u03b1\u03c5\u03c4\u03cc\u03bd \u03c4\u03bf\u03bd \u03c4\u03bf\u03bc\u03ad\u03b1 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7 \u03c5\u03b3\u03c1\u03ce\u03bd \u03c3\u03c5\u03bc\u03c0\u03c5\u03ba\u03bd\u03c9\u03bc\u03ac\u03c4\u03c9\u03bd.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 3: \u03a0\u03bf\u03b9\u03bf \u03b1\u03c0\u03cc \u03c4\u03b1 \u03b4\u03cd\u03bf \u03ad\u03c7\u03b5\u03b9 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03bf \u03bd\u03b5\u03c1\u03cc, \u03c4\u03bf HEC \u03ae \u03c4\u03bf HPMC;<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0391: \u03a3\u03b5 \u03ad\u03bd\u03b1 \u03be\u03b7\u03c1\u03cc \u03c6\u03b9\u03bb\u03bc \u03b5\u03c0\u03b9\u03ba\u03ac\u03bb\u03c5\u03c8\u03b7\u03c2, \u03c4\u03bf HEC \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03bf \u03bd\u03b5\u03c1\u03cc \u03c3\u03b5 \u03af\u03c3\u03b7 \u03b4\u03bf\u03c3\u03bf\u03bb\u03bf\u03b3\u03af\u03b1. \u03a4\u03bf HEC \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03b8\u03b1\u03c1\u03ac \u03c5\u03b4\u03c1\u03cc\u03c6\u03b9\u03bb\u03bf \u03ba\u03b1\u03b9 \u03bc\u03b7 \u03b5\u03c0\u03b9\u03c6\u03b1\u03bd\u03b5\u03b9\u03bf\u03b4\u03c1\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc, \u03bf\u03c0\u03cc\u03c4\u03b5 \u03c0\u03b1\u03c1\u03b5\u03bc\u03b2\u03b1\u03af\u03bd\u03b5\u03b9 \u03b5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03b1 \u03c3\u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03bd\u03c9\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03bb\u03b1\u03c4\u03ad\u03be\u00b7 \u03bf\u03b9 \u03bc\u03b5\u03b8\u03bf\u03be\u03c5\u03bf\u03bc\u03ac\u03b4\u03b5\u03c2 \u03c4\u03bf\u03c5 HPMC \u03b5\u03c0\u03b9\u03b2\u03c1\u03b1\u03b4\u03cd\u03bd\u03bf\u03c5\u03bd \u03c4\u03b7 \u03c3\u03c5\u03bd\u03ad\u03bd\u03c9\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03bf\u03cd\u03bd \u03ad\u03bd\u03b1 \u03c6\u03b9\u03bb\u03bc \u03b5\u03bb\u03b1\u03c6\u03c1\u03ce\u03c2 \u03c0\u03b9\u03bf \u03b5\u03c5\u03b1\u03af\u03c3\u03b8\u03b7\u03c4\u03bf \u03c3\u03c4\u03bf \u03bd\u03b5\u03c1\u03cc. \u03a3\u03c4\u03b7\u03bd \u03c0\u03c1\u03ac\u03be\u03b7, \u03ad\u03bd\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1 \u03bb\u03b1\u03c4\u03ad\u03be \u03bc\u03b5 \u03c0\u03b5\u03c1\u03b9\u03b5\u03ba\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c3\u03b5 HEC 0,25\u20130,40% \u03b1\u03bd\u03c4\u03ad\u03c7\u03b5\u03b9 300\u2013500+ \u03ba\u03cd\u03ba\u03bb\u03bf\u03c5\u03c2 \u03c5\u03b3\u03c1\u03bf\u03cd \u03c4\u03c1\u03b9\u03c8\u03af\u03bc\u03b1\u03c4\u03bf\u03c2 \u03c3\u03cd\u03bc\u03c6\u03c9\u03bd\u03b1 \u03bc\u03b5 \u03c4\u03bf \u03c0\u03c1\u03cc\u03c4\u03c5\u03c0\u03bf ASTM D2486, \u03b5\u03bd\u03ce \u03c4\u03bf \u03af\u03b4\u03b9\u03bf \u03c7\u03c1\u03ce\u03bc\u03b1 \u03bc\u03b5 \u03af\u03c3\u03b7 \u03b4\u03bf\u03c3\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 HPMC \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03bc\u03b5\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf\u03c5\u03c2 150\u2013300 \u03ba\u03cd\u03ba\u03bb\u03bf\u03c5\u03c2.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u0395\u03c1\u03ce\u03c4\u03b7\u03c3\u03b7 4: \u03a0\u03bf\u03b9\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03ac \u03c3\u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c0\u03ac\u03c7\u03c5\u03bd\u03c3\u03b7\u03c2;<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0391: \u03a3\u03b5 \u03af\u03c3\u03bf \u03bc\u03bf\u03c1\u03b9\u03b1\u03ba\u03cc \u03b2\u03ac\u03c1\u03bf\u03c2, \u03c4\u03bf HEC \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03c0\u03b9\u03bf \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c0\u03c5\u03ba\u03bd\u03c9\u03c4\u03b9\u03ba\u03cc \u03c3\u03c4\u03bf \u03bd\u03b5\u03c1\u03cc, \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03bf\u03b9 \u03bc\u03b5\u03b3\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b5\u03c2 \u03c0\u03bb\u03b5\u03c5\u03c1\u03b9\u03ba\u03ad\u03c2 \u03b1\u03bb\u03c5\u03c3\u03af\u03b4\u03b5\u03c2 \u03c5\u03b4\u03c1\u03bf\u03be\u03c5\u03b1\u03b9\u03b8\u03c5\u03bb\u03af\u03bf\u03c5 \u03c4\u03bf\u03c5 \u03b5\u03bc\u03c0\u03bb\u03ad\u03ba\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b9\u03c3\u03c7\u03c5\u03c1\u03cc\u03c4\u03b5\u03c1\u03b1. \u03a3\u03b5 \u03ad\u03bd\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1, \u03c4\u03bf HEC \u03b5\u03c0\u03b9\u03c4\u03c5\u03b3\u03c7\u03ac\u03bd\u03b5\u03b9 \u03c4\u03bf \u03b5\u03c0\u03b9\u03b4\u03b9\u03c9\u03ba\u03cc\u03bc\u03b5\u03bd\u03bf \u03b9\u03be\u03ce\u03b4\u03b5\u03c2 Stormer \u03bc\u03b5 20\u201330% \u03c7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b4\u03bf\u03c3\u03bf\u03bb\u03bf\u03b3\u03af\u03b1 \u03b1\u03c0\u03cc \u03c4\u03bf HPMC. \u0397 \u03c3\u03cd\u03b3\u03ba\u03c1\u03b9\u03c3\u03b7 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b3\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03af\u03c3\u03b7 \u03c4\u03b9\u03bc\u03ae KU \u03ba\u03b1\u03b9 \u03cc\u03c7\u03b9 \u03c3\u03b5 \u03af\u03c3\u03bf \u03c0\u03bf\u03c3\u03bf\u03c3\u03c4\u03cc \u03ba\u03b1\u03c4\u03ac \u03b2\u03ac\u03c1\u03bf\u03c2, \u03b4\u03b9\u03b1\u03c6\u03bf\u03c1\u03b5\u03c4\u03b9\u03ba\u03ac \u03b8\u03b1 \u03ba\u03c1\u03af\u03bd\u03b5\u03c4\u03b5 \u03b5\u03c3\u03c6\u03b1\u03bb\u03bc\u03ad\u03bd\u03b1 \u03c0\u03bf\u03b9\u03bf \u03c0\u03bf\u03bb\u03c5\u03bc\u03b5\u03c1\u03ad\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u201c\u03b9\u03c3\u03c7\u03c5\u03c1\u03cc\u03c4\u03b5\u03c1\u03bf\u201d. \u03a4\u03bf HEC \u03b4\u03b7\u03bc\u03b9\u03bf\u03c5\u03c1\u03b3\u03b5\u03af \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03b4\u03bf\u03bc\u03ae \u03bc\u03b5 \u03c7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b4\u03b9\u03ac\u03c4\u03bc\u03b7\u03c3\u03b7, \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03bf\u03bd\u03c4\u03b1\u03c2 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b7 \u03b1\u03bd\u03c4\u03bf\u03c7\u03ae \u03c3\u03c4\u03b7 \u03c1\u03b5\u03c5\u03c3\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1 \u03b1\u03bd\u03ac \u03bc\u03bf\u03bd\u03ac\u03b4\u03b1 \u03b4\u03bf\u03c3\u03bf\u03bb\u03bf\u03b3\u03af\u03b1\u03c2.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u0395\u03c1. 5: \u039c\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03bf\u03cd\u03bd \u03bc\u03b1\u03b6\u03af \u03c4\u03bf HEC \u03ba\u03b1\u03b9 \u03c4\u03bf HPMC;<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">A: Yes, and it is common in two situations. In gypsum skim coats, a small <a href=\"https:\/\/tenessy.com\/products\/hec-hydroxyethyl-cellulose\/\"><u>HEC<\/u><\/a>&nbsp;fraction (up to 30% of the cellulose ether blend) tunes flow and salt tolerance without hurting water retention. In liquid-modified cementitious coatings, HEC stabilizes the liquid concentrate while HPMC in the dry part handles water retention. Avoid pre-dissolving both polymers together at high concentration, which can form gel lumps, and re-test water retention and open time whenever you change the blend ratio.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>\u0395\u03c1. 6: \u03a0\u03bf\u03b9\u03bf \u03c0\u03bf\u03bb\u03c5\u03bc\u03b5\u03c1\u03ad\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03bf \u03b3\u03b9\u03b1 \u03b5\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03c3\u03b5 \u03c5\u03c8\u03b7\u03bb\u03ad\u03c2 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b5\u03c2;<\/strong><strong><\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u0391: \u03a4\u03bf HEC, \u03b5\u03c0\u03b5\u03b9\u03b4\u03ae \u03b7 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1 \u03b8\u03b5\u03c1\u03bc\u03b9\u03ba\u03ae\u03c2 \u03c0\u03ae\u03be\u03b7\u03c2 \u03c4\u03bf\u03c5 (65\u201375 \u00b0C) \u03b5\u03af\u03bd\u03b1\u03b9 \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03b7 \u03b1\u03c0\u03cc \u03b5\u03ba\u03b5\u03af\u03bd\u03b7 \u03c4\u03bf\u03c5 HPMC (55\u201365 \u00b0C). \u03a9\u03c3\u03c4\u03cc\u03c3\u03bf, \u03c3\u03b5 \u03ad\u03bd\u03b1 \u03ba\u03bf\u03bd\u03af\u03b1\u03bc\u03b1 \u03c0\u03bf\u03c5 \u03b5\u03c6\u03b1\u03c1\u03bc\u03cc\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03c5\u03c8\u03b7\u03bb\u03ae\u03c2 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1\u03c2, \u03c4\u03bf \u03b5\u03bb\u03b1\u03c6\u03c1\u03ce\u03c2 \u03c7\u03b1\u03bc\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03c0\u03b7\u03ba\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 HPMC \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03b1\u03b8\u03bc\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c5\u03bd\u03ae\u03b8\u03c9\u03c2 \u03bc\u03b5 \u03c4\u03b7 \u03b4\u03bf\u03c3\u03bf\u03bb\u03bf\u03b3\u03af\u03b1\u00b7 \u03c4\u03bf \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03b1\u03c3\u03c4\u03ad\u03c1\u03b9 \u03b3\u03b9\u03b1 \u03c4\u03b1 \u03b8\u03b5\u03c1\u03bc\u03ac \u03ba\u03bb\u03af\u03bc\u03b1\u03c4\u03b1 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u03b1\u03b9\u03b8\u03b5\u03c1\u03b9\u03ba\u03ce\u03bd \u03c0\u03c1\u03bf\u03c3\u03b8\u03ad\u03c4\u03c9\u03bd \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03bf\u03b9\u03ba\u03bf\u03b4\u03bf\u03bc\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf HEMC, \u03c4\u03bf\u03c5 \u03bf\u03c0\u03bf\u03af\u03bf\u03c5 \u03c4\u03bf \u03c3\u03b7\u03bc\u03b5\u03af\u03bf \u03c0\u03b7\u03ba\u03c4\u03bf\u03c0\u03bf\u03af\u03b7\u03c3\u03b7\u03c2 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03ba\u03cc\u03bc\u03b7 \u03c5\u03c8\u03b7\u03bb\u03cc\u03c4\u03b5\u03c1\u03bf. \u0393\u03b9\u03b1 \u03c4\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03bb\u03b1\u03c4\u03ad\u03be \u03c0\u03bf\u03c5 \u03b1\u03c0\u03bf\u03b8\u03b7\u03ba\u03b5\u03cd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03ae \u03b5\u03c6\u03b1\u03c1\u03bc\u03cc\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03c3\u03c5\u03bd\u03b8\u03ae\u03ba\u03b5\u03c2 \u03b6\u03ad\u03c3\u03c4\u03b7\u03c2, \u03c4\u03bf \u03b9\u03be\u03ce\u03b4\u03b5\u03c2 \u03c4\u03bf\u03c5 HEC \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03b9\u03bf \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03cc \u03c3\u03b5 \u03cc\u03bb\u03bf \u03c4\u03bf \u03b5\u03cd\u03c1\u03bf\u03c2 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03b9\u03ce\u03bd \u2014 \u03ad\u03bd\u03b1\u03c2 \u03b1\u03ba\u03cc\u03bc\u03b7 \u03bb\u03cc\u03b3\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03bf\u03bd \u03bf\u03c0\u03bf\u03af\u03bf \u03ba\u03c5\u03c1\u03b9\u03b1\u03c1\u03c7\u03b5\u03af \u03c3\u03c4\u03bf\u03bd \u03c4\u03bf\u03bc\u03ad\u03b1 \u03c4\u03c9\u03bd \u03c7\u03c1\u03c9\u03bc\u03ac\u03c4\u03c9\u03bd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u03a3\u03c5\u03bc\u03c0\u03ad\u03c1\u03b1\u03c3\u03bc\u03b1<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">HEC vs HPMC is not a rivalry; it is a division of labor.<a href=\"https:\/\/tenessy.com\/products\/hec-hydroxyethyl-cellulose\/\"><u>&nbsp;HEC <\/u><\/a>is the non-ionic water-phase thickener that gives latex paints their body, sag resistance, and storage stability without disturbing the binder, and its higher gelation temperature and salt tolerance make it the robust choice for coatings. HPMC is the water-retention specialist of cementitious and gypsum systems, where its surface-active methoxy chemistry, thermal gelation behavior, and film-forming character are exactly what mortar formulations need. Choose by binder, by failure mode, and by the film-performance standard you must meet \u2014 and when one polymer cannot do everything, blend it with a co-thickener or a small complementary ether rather than forcing the wrong molecule to do the job.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/tenessy.com\/products\/hec-hydroxyethyl-cellulose\/\"><u>\u0397 TENESSY Chemical \u03c0\u03b1\u03c1\u03ac\u03b3\u03b5\u03b9 <\/u><\/a>both HEC and HPMC from premium cotton linters on German equipment, with exports to 40+ countries and 10,000+ customers. Contact us for a free 500\u20133000 g sample of either polymer, a grade recommendation for your formulation, or a technical comparison with data from your own raw materials \u2014 production lead time is 7\u201314 days.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><strong>\u03a0\u03c1\u03bf\u03c4\u03b5\u03b9\u03bd\u03cc\u03bc\u03b5\u03bd\u03b1 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1:<\/strong><\/strong>\u00a0<a href=\"https:\/\/tenessy.com\/products\/hec-hydroxyethyl-cellulose\/\"><u>HEC (\u03c5\u03b4\u03c1\u03bf\u03be\u03c5\u03b1\u03b9\u03b8\u03c5\u03bb\u03bf\u03ba\u03c5\u03c4\u03c4\u03b1\u03c1\u03af\u03bd\u03b7)<\/u><\/a>\u00a0|\u00a0<a href=\"https:\/\/tenessy.com\/products\/hpmc-hydroxypropyl-methyl-cellulose\/\"><u>HPMC (\u03c5\u03b4\u03c1\u03bf\u03be\u03c5\u03c0\u03c1\u03bf\u03c0\u03c5\u03bb\u03bf\u03bc\u03b5\u03b8\u03c5\u03bb\u03bf\u03ba\u03c5\u03c4\u03c4\u03b1\u03c1\u03af\u03bd\u03b7)<\/u><\/a><br><strong><strong>\u03a3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ad\u03c2 \u03b1\u03bd\u03b1\u03c6\u03bf\u03c1\u03ad\u03c2:<\/strong><\/strong>\u00a0<a href=\"https:\/\/tenessy.com\/hec-in-water-based-paints\/\"><u>HEC \u03c3\u03c4\u03b1 \u03c7\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1 \u03bc\u03b5 \u03b2\u03ac\u03c3\u03b7 \u03c4\u03bf \u03bd\u03b5\u03c1\u03cc: \u039f\u03b4\u03b7\u03b3\u03cc\u03c2 \u03b3\u03b9\u03b1 \u03c0\u03c5\u03ba\u03bd\u03c9\u03c4\u03b9\u03ba\u03ac \u03ba\u03b1\u03b9 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03bf\u03c0\u03bf\u03b9\u03b7\u03c4\u03b9\u03ba\u03ac<\/u><\/a>\u00a0|\u00a0<a href=\"https:\/\/tenessy.com\/hemc-in-construction\/\"><u>HEMC (MHEC) \u03c3\u03c4\u03b9\u03c2 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ad\u03c2: \u0395\u03c6\u03b1\u03c1\u03bc\u03bf\u03b3\u03ad\u03c2 \u03ba\u03b1\u03b9 \u03c0\u03bb\u03b5\u03bf\u03bd\u03b5\u03ba\u03c4\u03ae\u03bc\u03b1\u03c4\u03b1<\/u><\/a>\u00a0|\u00a0<a href=\"https:\/\/tenessy.com\/hpmc-for-detergent\/\"><u>HPMC \u03b3\u03b9\u03b1 \u03b1\u03c0\u03bf\u03c1\u03c1\u03c5\u03c0\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac: \u03a0\u03c5\u03ba\u03bd\u03c9\u03c4\u03b9\u03ba\u03cc \u03ba\u03b1\u03b9 \u03c0\u03b1\u03c1\u03ac\u03b3\u03bf\u03bd\u03c4\u03b1\u03c2 \u03b5\u03bd\u03b1\u03b9\u03ce\u03c1\u03b7\u03c3\u03b7\u03c2 \u03c3\u03b5 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1 \u03ba\u03b1\u03b8\u03b7\u03bc\u03b5\u03c1\u03b9\u03bd\u03ae\u03c2 \u03c7\u03c1\u03ae\u03c3\u03b7\u03c2<\/u><\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Choosing between HEC vs HPMC\u00a0for coatings comes down to three questions: what kind of coating you are making, which performance target you must hit, and how the thickener interacts with the rest of the formulation. Hydroxyethyl cellulose (HEC) dominates water-based paints, while hydroxypropyl methyl cellulose (HPMC) is the standard in cementitious coatings and dry-mix mortar [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":12989,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-15409","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/tenessy.com\/el\/wp-json\/wp\/v2\/posts\/15409","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tenessy.com\/el\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tenessy.com\/el\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tenessy.com\/el\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tenessy.com\/el\/wp-json\/wp\/v2\/comments?post=15409"}],"version-history":[{"count":1,"href":"https:\/\/tenessy.com\/el\/wp-json\/wp\/v2\/posts\/15409\/revisions"}],"predecessor-version":[{"id":15416,"href":"https:\/\/tenessy.com\/el\/wp-json\/wp\/v2\/posts\/15409\/revisions\/15416"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tenessy.com\/el\/wp-json\/wp\/v2\/media\/12989"}],"wp:attachment":[{"href":"https:\/\/tenessy.com\/el\/wp-json\/wp\/v2\/media?parent=15409"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tenessy.com\/el\/wp-json\/wp\/v2\/categories?post=15409"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tenessy.com\/el\/wp-json\/wp\/v2\/tags?post=15409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}