Applications of Cellulose Ethers in Construction You Should Know

January 17, 2025
8:08 AM

Achieving the perfect balance between constructability, durability and performance is key in modern construction. There is one ingredient that offers versatility and effectiveness. It has an important role to play in ensuring the quality and performance of various building materials: Cellulose Ethers. The TENESSY cellulose ether range, with its HPMC, HEMC/MHEC, and HEC.In this article, we will look at the two main applications of cellulose ethers in construction: cement-based and gypsum-based products.

I.Application of Cellulose Ethers in Construction Gypsum Based Products

Gypsum is a universally popular building material. Gypsum based materials are widely used in interior construction to provide smooth, efficient and high quality finishes. He is lightweight and easier to apply.

But did you know? Adding cellulose ethers to gypsum can lead to improved product performance. However, without cellulose ethers, they would not perform as well. These additives improve water retention, enhance adhesion, and are easier to apply. Let’s learn how cellulose ethers can improve different gypsum-based materials:

1.Gypsum Plasters

Imagine trying to apply gypsum based plaster, only to have it dry too fast or crack after a few days. That’s a frustrating result, right? Here’s where cellulose ethers come in. They improve water retention. Construction workers have more flexibility in plastering jobs while ensuring even drying of the plaster. In addition, cellulose ethers improve the consistency of the plaster, making it easier to spread while preventing sagging. The result? You’ll get a smooth, crack-free, durable finish. Gypsum-based Plaster Formulations:

Raw Material	Weight/kg
Desulfurization Gypsum	250(300)
Sand (40-70 mesh)	450
Sand (70-120 mesh)	250
Heavy Calcium Powder (325 mesh)	50
Cellulose Ether HPMC	1.5-2
Gypsum Retarder	0.5-1
White Wood Fiber (Optional)	3-4
Starch Ether (Optional)	0.5

2. Gypsum Joint Fillers and Skim Coats

Joint fillers and putties are essential for fine details such as filling gaps or creating polished surfaces. Cellulose ether improves workability, prevents shrinkage, and improves adhesive strength, ensuring that joint fillers and putties provide a seamless finish.

3. Lightweight Gypsum Mortar

Want to achieve better insulation in your project? Lightweight gypsum mortar is the answer. Cellulose ethers stabilize air bubbles in the mixture, improving pumpability and sag resistance. This means easier construction and better insulation, especially in energy-efficient buildings.

II.Application of Cellulose Ethers in Construction Cement Based Products

Cement-based materials are the foundation of construction, providing structural strength and durability. However, they often face challenges during construction, such as premature drying, poor adhesion, or cracks. But don’t worry, our cellulose ethers can help alleviate your problems. These cellulose ether additives help improve water retention, increase workability, and enhance the overall quality of cement-based materials. Learn about key cement-based applications.

1. Tile Adhesives

Have you ever experienced a situation where tiles just won’t stick or fall off easily? TENESSY cellulose ethers can make sure that doesn’t happen. Cellulose ethers enhance water retention in tile adhesives. Water retention is especially important in warm and dry climates, where rapid water loss can affect the performance of the adhesive. Cellulose ethers ensure that tiles are firmly fixed by improving bond strength and open time, while allowing ample time for adjustment.

2. Wall Putty

A smooth, crack-free finish on the wall starts with a high-quality putty. Cellulose enhances the consistency of the putty, making it easier to apply while enhancing durability. This makes the wall more beautiful and lasts longer. Putties containing cellulose ethers also resist shrinkage and maintain a uniform thickness.

3. Self-leveling Compounds

A perfectly flat floor requires self-leveling mortars containing cellulose ethers. They improve flow, prevent material separation, and ensure a uniform, high-strength finish. Self-leveling is suitable for commercial and residential projects where a smooth, flawless floor is a priority. Additionally, cellulose ethers help maintain the fluidity of self-leveling compounds, making applications faster and reducing manual labor.

4. Repair Mortars

When repairing cracks and damage, repair mortars must be strong and durable. Cellulose ethers enhance adhesion, reduce shrinkage, and improve overall durability, ensuring that repairs last. These mortars are often used for structural repairs that require precision and strength. By improving cohesion and preventing premature drying, cellulose ethers help ensure that the repair blends seamlessly with the existing structure.

5. EIFS

With cellulose ethers, these systems become more flexible, crack-resistant, and easier to apply, helping to improve insulation performance and service life. EIFS coatings must withstand thermal expansion and contraction, and cellulose ethers enhance their elasticity and reduce the possibility of cracking.

III.Why Cellulose Ethers are a Must-Have in Construction

Regardless of whether you’re working with gypsum or cement-based materials, cellulose ethers bring undeniable benefits:

Better workability – Ensuring smooth and easy application.

Improved water retention – Preventing premature drying and enhancing durability.

Enhanced bonding strength – Creating stronger, more reliable materials.

Crack resistance – Reducing shrinkage and ensuring long-lasting results.

Increased efficiency – Reducing material waste and improving application speed.

Improved weather resistance – Helping materials perform better in different environmental conditions.Additionally, these additives contribute to cost savings by minimizing defects and rework, ensuring construction projects stay on schedule and within budget.

IV. Conclusion

The application of cellulose ether in construction is necessary. Choose a supplier with stable and reliable quality to ensure the stability of the project. As a manufacturer of cellulose ether, TENESSY can guarantee the stability of quality and provide necessary technical support according to your specific application.