Product Overview

Hydroxypropyl methylcellulose (HPMC) [C6H7O2(OH)2-m-n(OCH3)m(OCH2CH(OH)CH3)n]x

X represents the degree of polymerization.

The hydroxypropyl methyl cellulose supplied by our company has a viscosity range of 40,000 to 200,000.

Hydroxypropyl methylcellulose (HPMC) is a non-ionic cellulose ether derived from the natural polymeric material cellulose through a series of chemical processes. HPMC is a white powder that is odorless, tasteless, and non-toxic; it dissolves in cold water to form a clear, viscous solution. It exhibits properties such as thickening, binding, dispersing, emulsifying, film-forming, suspending, adsorbing, gelling, surface activity, moisture retention, and colloidal protection.

Applications in building materials

1. Masonry mortar and plastering mortar

High water-retention capacity ensures complete hydration of cement, significantly enhancing bond strength. At the same time, it can moderately improve tensile and shear strengths. This greatly improves construction performance and boosts work efficiency.

2. Water-resistant putty

In putty, cellulose ethers primarily serve the functions of water retention, adhesion, and lubrication. They prevent rapid water loss, which could otherwise lead to cracking or powdering. At the same time, they enhance the putty's adhesion, reduce sagging during application, and make the construction process smoother and less labor-intensive.

3. Interface agent

Primarily used as a thickener, it can enhance tensile strength and shear strength, improve surface coatings, and boost adhesion and bonding strength.

4. Exterior wall external thermal insulation mortar

Cellulose ethers play a key role in this material by acting as binders and enhancing strength, making the mortar easier to apply and improving work efficiency. At the same time, they provide anti-sagging properties, and their high water-retention capability extends the working life of the mortar, improves resistance to shrinkage and cracking, enhances surface quality, and boosts bond strength.

5. Tile Adhesive

Its higher water-retention capability eliminates the need to pre-soak or wet the tiles and substrate, significantly enhancing their bond strength. The mortar has a longer workable time, is smooth, uniform, and easy to apply, while also exhibiting excellent anti-slip performance.

6. Fill the gap, fill the groove

The addition of cellulose ether imparts excellent edge adhesion, low shrinkage, and high abrasion resistance, protecting the substrate material from mechanical damage and preventing the negative effects of water penetration on the entire structure.

7. Self-leveling material

The viscosity stabilized by cellulose ethers ensures excellent fluidity and self-leveling properties. By controlling the water retention rate, it enables rapid setting, reducing cracking and shrinkage.