{"id":14465,"date":"2026-05-06T07:59:42","date_gmt":"2026-05-06T07:59:42","guid":{"rendered":"https:\/\/tenessy.com\/?p=14465"},"modified":"2026-05-11T01:59:00","modified_gmt":"2026-05-11T01:59:00","slug":"como-escolher-o-grau-certo-de-hpmc-para-suas-formulacoes-de-argamassa-drymix","status":"publish","type":"post","link":"https:\/\/tenessy.com\/pt\/como-escolher-o-grau-certo-de-hpmc-para-suas-formulacoes-de-argamassa-drymix\/","title":{"rendered":"Como escolher o grau certo de HPMC para suas formula\u00e7\u00f5es de argamassa Drymix"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"14465\" class=\"elementor elementor-14465\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fdbc6e4 e-flex e-con-boxed e-con e-parent\" data-id=\"fdbc6e4\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-20af60d elementor-widget elementor-widget-image\" data-id=\"20af60d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"491\" src=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/05\/drymix-mortar.jpg\" class=\"attachment-large size-large wp-image-14472\" alt=\"drymix-mortar\" srcset=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/05\/drymix-mortar.jpg 1000w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/05\/drymix-mortar-300x184.jpg 300w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/05\/drymix-mortar-768x472.jpg 768w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/05\/drymix-mortar-18x12.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5ae54ec elementor-widget elementor-widget-text-editor\" data-id=\"5ae54ec\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">No mundo da produ\u00e7\u00e3o de argamassas pr\u00e9-misturadas, pequenas diferen\u00e7as nas mat\u00e9rias-primas podem levar a grandes varia\u00e7\u00f5es no desempenho do produto final. Entre todos os aditivos,\u00a0<a href=\"https:\/\/tenessy.com\/products\/hpmc-hydroxypropyl-methyl-cellulose\/\"><strong>Hidroxipropilmetilcelulose (HPMC)<\/strong><\/a>\u00a0destaca-se como um dos ingredientes funcionais mais importantes. Ele influencia diretamente a reten\u00e7\u00e3o de \u00e1gua, a trabalhabilidade, a resist\u00eancia ao escorrimento, o tempo aberto e a resist\u00eancia de ader\u00eancia.<\/p><p class=\"ds-markdown-paragraph\">No entanto, a sele\u00e7\u00e3o do\u00a0<strong>tipo adequado de HPMC<\/strong>\u00a0A escolha da formula\u00e7\u00e3o espec\u00edfica da sua argamassa seca n\u00e3o \u00e9 uma decis\u00e3o gen\u00e9rica. Com dezenas de op\u00e7\u00f5es de viscosidade, tipos de substitui\u00e7\u00e3o e graus de modifica\u00e7\u00e3o dispon\u00edveis,\u00a0<strong>Como fazer a escolha certa?<\/strong><\/p><p class=\"ds-markdown-paragraph\">Este guia \u2014 baseado nos mais de 15 anos de experi\u00eancia da TENESSY em <a href=\"https:\/\/tenessy.com\/products\/cellulose-ether\/\">\u00e9ter de celulose<\/a> suporte \u00e0 formula\u00e7\u00e3o de materiais e argamassas \u2014 ajudar\u00e1 voc\u00ea a compreender os par\u00e2metros-chave e a tomar uma decis\u00e3o informada e orientada para a aplica\u00e7\u00e3o.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bbece77 elementor-widget elementor-widget-heading\" data-id=\"bbece77\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">I.  Por que a escolha do tipo de HPMC \u00e9 importante na argamassa pr\u00e9-misturada a seco<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1d6e955 elementor-widget elementor-widget-image\" data-id=\"1d6e955\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"534\" src=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/05\/Hydroxypropyl-Methyl-Cellulose-powder-1024x683.webp\" class=\"attachment-large size-large wp-image-14470\" alt=\"Hidroxipropilmetilcelulose em p\u00f3\" srcset=\"https:\/\/tenessy.com\/wp-content\/uploads\/2026\/05\/Hydroxypropyl-Methyl-Cellulose-powder-1024x683.webp 1024w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/05\/Hydroxypropyl-Methyl-Cellulose-powder-300x200.webp 300w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/05\/Hydroxypropyl-Methyl-Cellulose-powder-768x512.webp 768w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/05\/Hydroxypropyl-Methyl-Cellulose-powder-1536x1024.webp 1536w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/05\/Hydroxypropyl-Methyl-Cellulose-powder-2048x1365.webp 2048w, https:\/\/tenessy.com\/wp-content\/uploads\/2026\/05\/Hydroxypropyl-Methyl-Cellulose-powder-18x12.webp 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d7524a3 elementor-widget elementor-widget-text-editor\" data-id=\"d7524a3\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">O HPMC n\u00e3o \u00e9 apenas um espessante. Na argamassa pr\u00e9-misturada, ele desempenha tr\u00eas fun\u00e7\u00f5es principais:<\/p><ol start=\"1\"><li><p class=\"ds-markdown-paragraph\"><strong>Reten\u00e7\u00e3o de \u00e1gua<\/strong>\u00a0\u2013 Impede que a \u00e1gua penetre muito rapidamente no substrato, garantindo a hidrata\u00e7\u00e3o adequada do cimento.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Melhoria da trabalhabilidade<\/strong>\u00a0\u2013 Proporciona uma mistura e aplica\u00e7\u00e3o suaves e sem pegajosidade.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Prorroga\u00e7\u00e3o do prazo de abertura<\/strong>\u00a0\u2013 Permite tempo suficiente para o posicionamento dos azulejos ou o nivelamento da superf\u00edcie antes que a argamassa comece a endurecer.<\/p><\/li><\/ol><p class=\"ds-markdown-paragraph\">Se voc\u00ea escolher o\u00a0<strong>tipo incorreto de HPMC<\/strong>, voc\u00ea pode se deparar com:<\/p><ul><li><p class=\"ds-markdown-paragraph\">Afundamento ou deslizamento em aplica\u00e7\u00f5es de camada espessa<\/p><\/li><li><p class=\"ds-markdown-paragraph\">Tempo de abertura curto para adesivos para azulejos<\/p><\/li><li><p class=\"ds-markdown-paragraph\">Baixa resist\u00eancia de ades\u00e3o<\/p><\/li><li><p class=\"ds-markdown-paragraph\">Argamassa pegajosa ou com sensa\u00e7\u00e3o de peso<\/p><\/li><li><p class=\"ds-markdown-paragraph\">Endurecimento irregular e rachaduras<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\">Portanto, compreender as especifica\u00e7\u00f5es do HPMC n\u00e3o \u00e9 um luxo \u2014 \u00e9 uma\u00a0<strong>necessidade<\/strong>\u00a0para fabricantes de argamassa que buscam qualidade consistente e vantagem competitiva.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c8fd91 elementor-widget elementor-widget-heading\" data-id=\"0c8fd91\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">II.  Par\u00e2metros-chave para a sele\u00e7\u00e3o de HPMC em argamassa pr\u00e9-misturada a seco<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad5ddaa elementor-widget elementor-widget-text-editor\" data-id=\"ad5ddaa\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Ao avaliar os tipos de HPMC para argamassa pr\u00e9-misturada, concentre-se nos cinco par\u00e2metros t\u00e9cnicos a seguir:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4a0d139 elementor-widget elementor-widget-heading\" data-id=\"4a0d139\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">1. Viscosidade (mPa\u00b7s, solu\u00e7\u00e3o 2%, 20 \u00b0C)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c7729ed elementor-widget elementor-widget-text-editor\" data-id=\"c7729ed\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">A viscosidade \u00e9 a propriedade mais frequentemente discutida, mas tamb\u00e9m \u00e9 a mais mal compreendida.<\/p><p class=\"ds-markdown-paragraph\"><strong>Baixa viscosidade (por exemplo, 400\u20132.000 mPa\u00b7s):<\/strong><\/p><ul><li><p class=\"ds-markdown-paragraph\">Adequado para <a href=\"https:\/\/tenessy.com\/applications\/application-self-leveling\/\">argamassas autonivelantes<\/a> e sistemas altamente fluidos<\/p><\/li><li><p class=\"ds-markdown-paragraph\">Proporciona reten\u00e7\u00e3o moderada de \u00e1gua sem espessamento excessivo<\/p><\/li><li><p class=\"ds-markdown-paragraph\">Permite a r\u00e1pida libera\u00e7\u00e3o de ar e um bom fluxo<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Viscosidade m\u00e9dia (por exemplo, 10.000\u201340.000 mPa\u00b7s):<\/strong><\/p><ul><li><p class=\"ds-markdown-paragraph\">Ideal para camadas finas em geral <a href=\"https:\/\/tenessy.com\/applications\/tile-adhesive\/hpmc-for-tile-adhesive\/\">adesivos para azulejos<\/a>, <a href=\"https:\/\/tenessy.com\/applications\/painting-coatings-solutions\/\">camadas finas<\/a>, e argamassas de gesso<\/p><\/li><li><p class=\"ds-markdown-paragraph\">Reten\u00e7\u00e3o de \u00e1gua e capacidade de trabalho equilibradas<\/p><\/li><li><p class=\"ds-markdown-paragraph\">Faixa mais comumente utilizada em formula\u00e7\u00f5es de mistura seca<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Alta viscosidade (por exemplo, 60.000\u2013100.000+ mPa\u00b7s):<\/strong><\/p><ul><li><p class=\"ds-markdown-paragraph\">Projetado para argamassas de camada espessa, <a href=\"https:\/\/tenessy.com\/applications\/eifs-etics-exterior-insulation-and-finish-systems\/\">EIFS<\/a> adesivos e rebocos texturizados<\/p><\/li><li><p class=\"ds-markdown-paragraph\">M\u00e1xima reten\u00e7\u00e3o de \u00e1gua e desempenho anti-afundamento<\/p><\/li><li><p class=\"ds-markdown-paragraph\">\u00c9 preciso misturar com cuidado para evitar grumos<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\"><strong>Dica do TENESSY:<\/strong>\u00a0Nunca confie apenas na viscosidade. Um produto com viscosidade de 75.000 mPa\u00b7s de um fabricante pode apresentar comportamento diferente do mesmo produto de outro fabricante. Sempre fa\u00e7a testes em sua formula\u00e7\u00e3o.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0506129 elementor-widget elementor-widget-heading\" data-id=\"0506129\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">2. Grau de substitui\u00e7\u00e3o (DS) e teor de hidroxipropoxi (HP)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a4bdde9 elementor-widget elementor-widget-text-editor\" data-id=\"a4bdde9\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\"><p class=\"ds-markdown-paragraph\">O HPMC \u00e9 caracterizado por\u00a0<strong>metoxi (\u2013OCH\u2083)<\/strong>\u00a0e\u00a0<strong>hidroxipropoxi (\u2013OCH\u2082CH(OH)CH\u2083)<\/strong>\u00a0substitui\u00e7\u00e3o.<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Maior teor de metoxi<\/strong>\u00a0\u2192 hidrata\u00e7\u00e3o mais r\u00e1pida e aumento mais r\u00e1pido da viscosidade<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Maior teor de hidroxipropoxi<\/strong>\u00a0\u2192 melhor solubilidade em \u00e1gua e resist\u00eancia \u00e0 gelifica\u00e7\u00e3o t\u00e9rmica<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\">Para argamassas pr\u00e9-misturadas utilizadas em climas quentes ou em sistemas ricos em cimento, um HPMC com\u00a0<strong>maior grau de modifica\u00e7\u00e3o com hidroxipropila<\/strong>\u00a0\u00e9 o mais recomendado. Ele evita a perda de viscosidade em temperaturas elevadas (gelifica\u00e7\u00e3o t\u00e9rmica), garantindo um desempenho consistente mesmo em substratos aquecidos.<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-00775b3 elementor-widget elementor-widget-heading\" data-id=\"00775b3\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">3. Taxa de reten\u00e7\u00e3o de \u00e1gua (%)<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-77e4b92 elementor-widget elementor-widget-text-editor\" data-id=\"77e4b92\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">A reten\u00e7\u00e3o de \u00e1gua afeta diretamente a hidrata\u00e7\u00e3o do cimento e a resist\u00eancia final de ader\u00eancia.<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Classes padr\u00e3o:<\/strong>\u00a085\u201392% reten\u00e7\u00e3o de \u00e1gua (adequado para ambientes internos e condi\u00e7\u00f5es amenas)<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>S\u00e9ries com alto \u00edndice de reten\u00e7\u00e3o:<\/strong>\u00a093\u201398% (essencial para <a href=\"https:\/\/tenessy.com\/applications\/gypsum-based-plaster\/\">argamassas \u00e0 base de gesso<\/a>, ambientes de alta temperatura ou substratos altamente absorventes, como o concreto celular)<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\">As argamassas pr\u00e9-misturadas \u00e0 base de gesso requerem\u00a0<strong>reten\u00e7\u00e3o de \u00e1gua especialmente elevada<\/strong>\u00a0porque o gesso se hidrata rapidamente e perde a maleabilidade se a \u00e1gua for retirada muito depressa.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cb7b433 elementor-widget elementor-widget-heading\" data-id=\"cb7b433\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">4. Temperatura do gel<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9c05709 elementor-widget elementor-widget-text-editor\" data-id=\"9c05709\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">A maioria dos tipos de HPMC apresenta um ponto de gelifica\u00e7\u00e3o entre 55 \u00b0C e 75 \u00b0C. Quando a temperatura da argamassa ultrapassa esse limite, o HPMC precipita-se da solu\u00e7\u00e3o, causando perda repentina da reten\u00e7\u00e3o de \u00e1gua e da trabalhabilidade.<\/p><ul><li><p class=\"ds-markdown-paragraph\">Para aplica\u00e7\u00f5es padr\u00e3o,\u00a0<strong>Temperatura do gel de 60\u201365 \u00b0C<\/strong>\u00a0\u00e9 suficiente.<\/p><\/li><li><p class=\"ds-markdown-paragraph\">Para climas quentes ou aplica\u00e7\u00f5es em camada fina sobre ladrilhos\/substratos aquecidos pelo sol (a temperatura pode chegar a 40\u201350 \u00b0C, al\u00e9m da temperatura da argamassa), escolha\u00a0<strong>HPMC de alta temperatura de gelifica\u00e7\u00e3o (\u226570 \u00b0C)<\/strong>.<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-40b0bff elementor-widget elementor-widget-heading\" data-id=\"40b0bff\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">5. Tamanho das part\u00edculas e velocidade de dispers\u00e3o<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e92cbcd elementor-widget elementor-widget-text-editor\" data-id=\"e92cbcd\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">O HPMC adicionado \u00e0 argamassa pr\u00e9-misturada deve se dispersar rapidamente, sem formar aglomerados.<\/p><ul><li><p class=\"ds-markdown-paragraph\"><strong>Tipos com tratamento de superf\u00edcie (dissolu\u00e7\u00e3o retardada)<\/strong>\u00a0misture bem em sistemas \u00e0 base de cimento, evitando a forma\u00e7\u00e3o de \u201colhos de peixe\u201d (part\u00edculas de gel n\u00e3o dissolvidas).<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Tamanho da part\u00edcula<\/strong>\u00a0deve ser &gt;98% com passagem pela malha 100 (150 \u00b5m) para garantir uma distribui\u00e7\u00e3o uniforme.<\/p><\/li><\/ul><p class=\"ds-markdown-paragraph\">Para usinas de argamassa seca em grande escala que utilizam misturadores cont\u00ednuos, os tipos de HPMC de r\u00e1pida dispers\u00e3o s\u00e3o essenciais para evitar imperfei\u00e7\u00f5es no produto final.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-9b2cd0b e-flex e-con-boxed e-con e-parent\" data-id=\"9b2cd0b\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-47b4288 elementor-widget elementor-widget-heading\" data-id=\"47b4288\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">III. Guia de sele\u00e7\u00e3o de HPMC por tipo de argamassa<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bdbd11f elementor-widget elementor-widget-text-editor\" data-id=\"bdbd11f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">A tabela pr\u00e1tica a seguir resume os par\u00e2metros recomendados pela TENESSY para o HPMC em formula\u00e7\u00f5es comuns de argamassa seca.<\/p><div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\"><table><thead><tr><th><strong>Tipo de argamassa<\/strong><\/th><th><strong>Viscosidade recomendada (mPa\u00b7s)<\/strong><\/th><th><strong>Reten\u00e7\u00e3o de \u00e1gua<\/strong><\/th><th><strong>Considera\u00e7\u00e3o fundamental<\/strong><\/th><\/tr><\/thead><tbody><tr><td>Adesivo para azulejos \u00e0 base de cimento (C1\/C2)<\/td><td>15,000 \u2013 40,000<\/td><td>\u226594%<\/td><td>Tempo de abertura \u2265 20 min; sistema anti-afundamento para ladrilhos grandes<\/td><\/tr><tr><td>Reboco externo (cimento)<\/td><td>40,000 \u2013 75,000<\/td><td>\u226594%<\/td><td>Resist\u00eancia a rachaduras; boa ader\u00eancia ao concreto<\/td><\/tr><tr><td>Reboco de gesso \/ massa para rejuntar<\/td><td>20,000 \u2013 40,000<\/td><td>\u226596%<\/td><td>Alta reten\u00e7\u00e3o; evita a presa prematura<\/td><\/tr><tr><td>Argamassa autonivelante (cimento)<\/td><td>400 \u2013 1,500<\/td><td>Moderado<\/td><td>Baixa viscosidade; r\u00e1pida libera\u00e7\u00e3o de ar<\/td><\/tr><tr><td>Adesivo para EIFS (isolamento externo)<\/td><td>60,000 \u2013 100,000<\/td><td>\u226596%<\/td><td>Alta reten\u00e7\u00e3o de \u00e1gua + alta viscosidade<\/td><\/tr><tr><td>Camada de acabamento \/ massa (em p\u00f3)<\/td><td>35,000 \u2013 50,000<\/td><td>Moderado-alto<\/td><td>Acabamento liso; f\u00e1cil de lixar<\/td><\/tr><tr><td>Argamassa de reparo (camada espessa)<\/td><td>50,000 \u2013 75,000<\/td><td>Alta<\/td><td>Antideslizamento; boa tixotropia<\/td><\/tr><\/tbody><\/table><\/div><p class=\"ds-markdown-paragraph\"><em>Observa\u00e7\u00e3o: Os valores s\u00e3o meramente indicativos. A sele\u00e7\u00e3o efetiva deve ser confirmada por testes laboratoriais com as mat\u00e9rias-primas dispon\u00edveis na sua regi\u00e3o.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-83ea234 elementor-widget elementor-widget-heading\" data-id=\"83ea234\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">IV. Erros comuns a evitar ao escolher o HPMC<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3712386 elementor-widget elementor-widget-text-editor\" data-id=\"3712386\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\">\n<p class=\"ds-markdown-paragraph\">Ao longo dos anos, a equipe t\u00e9cnica da TENESSY observou v\u00e1rios erros frequentes:<\/p>\n\n<h3 style=\"font-size: 20px\">\u274c Erro 1: Escolher a viscosidade mais alta \u201cs\u00f3 por precau\u00e7\u00e3o\u201d<\/h3>\n<p class=\"ds-markdown-paragraph\">A alta viscosidade nem sempre significa melhor desempenho. Em argamassas autonivelantes, a alta viscosidade ret\u00e9m o ar e impede o escoamento. Em adesivos para azulejos, a viscosidade excessivamente alta reduz a umecta\u00e7\u00e3o e diminui a resist\u00eancia de ader\u00eancia.<\/p>\n\n<h3 style=\"font-size: 20px\">\u274c Erro 2: Ignorar a capacidade de absor\u00e7\u00e3o do substrato<\/h3>\n<p class=\"ds-markdown-paragraph\">Em substratos altamente absorventes (por exemplo, tijolo vermelho, blocos de concreto celular), os tipos padr\u00e3o de HPMC costumam n\u00e3o funcionar. \u00c9 obrigat\u00f3rio o uso de um tipo com alta reten\u00e7\u00e3o de \u00e1gua.<\/p>\n\n<h3 style=\"font-size: 20px\">\u274c Erro 3: N\u00e3o testar a compatibilidade entre HPMC e cimento<\/h3>\n<p class=\"ds-markdown-paragraph\">Alguns tipos de HPMC retardam demais a presa do cimento. Sempre realize um teste de compatibilidade com o seu tipo espec\u00edfico de cimento.<\/p>\n\n<h3 style=\"font-size: 20px\">\u274c Erro 4: Concentrar-se apenas no pre\u00e7o<\/h3>\n<p class=\"ds-markdown-paragraph\">O HPMC de pre\u00e7o mais baixo costuma apresentar viscosidade inconsistente, menor pureza (maior teor de sal) ou baixa estabilidade da temperatura de gelifica\u00e7\u00e3o. O custo das reclama\u00e7\u00f5es recebidas no mercado supera em muito a economia obtida com a mat\u00e9ria-prima.<\/p>\n\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a3f4944 elementor-widget elementor-widget-heading\" data-id=\"a3f4944\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">V. A Abordagem da TENESSY: Apoiando sua escolha de HPMC<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8fce879 elementor-widget elementor-widget-text-editor\" data-id=\"8fce879\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Em\u00a0<strong>TENESSIA<\/strong>, n\u00e3o nos limitamos a vender HPMC. Oferecemos\u00a0<strong>suporte t\u00e9cnico orientado para a formula\u00e7\u00e3o<\/strong>\u00a0para ajudar os fabricantes de argamassa seca a terem sucesso.<\/p><h3>Nosso processo inclui:<\/h3><ol start=\"1\"><li><p class=\"ds-markdown-paragraph\"><strong>An\u00e1lise de necessidades<\/strong>\u00a0\u2013 Solicitamos informa\u00e7\u00f5es sobre o tipo de argamassa, o mercado-alvo, as condi\u00e7\u00f5es do substrato e o clima.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>An\u00e1lise de amostras<\/strong> \u2013 Amostras gr\u00e1tis dos tipos de HPMC recomendados para seus testes internos.<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Feedback sobre otimiza\u00e7\u00e3o<\/strong>\u00a0\u2013 Nossos qu\u00edmicos orientam voc\u00ea no ajuste fino da dosagem<\/p><\/li><li><p class=\"ds-markdown-paragraph\"><strong>Cadeia de suprimentos consistente<\/strong>\u00a0\u2013 Rastreabilidade total e estabilidade entre lotes.<\/p><\/li><\/ol>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9cf3064 elementor-widget elementor-widget-heading\" data-id=\"9cf3064\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclus\u00e3o<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d55bd9a elementor-widget elementor-widget-text-editor\" data-id=\"d55bd9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"ds-markdown-paragraph\">Escolher o tipo certo de HPMC para a formula\u00e7\u00e3o da sua argamassa pr\u00e9-misturada \u00e9 uma decis\u00e3o t\u00e9cnica estrat\u00e9gica, e n\u00e3o uma simples compra de produto b\u00e1sico.\u00a0<strong>Viscosidade, reten\u00e7\u00e3o de \u00e1gua, temperatura do gel e qu\u00edmica de substitui\u00e7\u00e3o<\/strong>\u00a0Tudo isso deve estar de acordo com o tipo de argamassa, as condi\u00e7\u00f5es clim\u00e1ticas e os requisitos da aplica\u00e7\u00e3o.<\/p><p class=\"ds-markdown-paragraph\">Em\u00a0<a href=\"https:\/\/tenessy.com\/\"><strong>TENESSIA<\/strong><\/a>, combinamos \u00e9ter de celulose de alta concentra\u00e7\u00e3o <a href=\"https:\/\/tenessy.com\/hpmc-supplier\/innovation\/\">P&amp;D<\/a> experi\u00eancia com suporte pr\u00e1tico na formula\u00e7\u00e3o de argamassas secas. Seja qual for o seu tipo de produ\u00e7\u00e3o\u00a0<strong>adesivos para azulejos \u00e0 base de cimento, rebocos de gesso, compostos autonivelantes ou rebocos para exteriores<\/strong>, nossa equipe pode ajud\u00e1-lo a selecionar e validar o tipo ideal de HPMC \u2014 de forma eficiente e confi\u00e1vel.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>No mundo da produ\u00e7\u00e3o de argamassa drymix, pequenas diferen\u00e7as nas mat\u00e9rias-primas podem levar a grandes varia\u00e7\u00f5es no desempenho do produto final. <\/p>","protected":false},"author":1,"featured_media":14472,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-14465","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"_links":{"self":[{"href":"https:\/\/tenessy.com\/pt\/wp-json\/wp\/v2\/posts\/14465","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tenessy.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tenessy.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tenessy.com\/pt\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tenessy.com\/pt\/wp-json\/wp\/v2\/comments?post=14465"}],"version-history":[{"count":12,"href":"https:\/\/tenessy.com\/pt\/wp-json\/wp\/v2\/posts\/14465\/revisions"}],"predecessor-version":[{"id":14625,"href":"https:\/\/tenessy.com\/pt\/wp-json\/wp\/v2\/posts\/14465\/revisions\/14625"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tenessy.com\/pt\/wp-json\/wp\/v2\/media\/14472"}],"wp:attachment":[{"href":"https:\/\/tenessy.com\/pt\/wp-json\/wp\/v2\/media?parent=14465"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tenessy.com\/pt\/wp-json\/wp\/v2\/categories?post=14465"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tenessy.com\/pt\/wp-json\/wp\/v2\/tags?post=14465"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}