Arich Cellulose® Hydroxypropyl Methylcellulose (HPMC) is a versatile additive for construction, pharmaceuticals, and cosmetics. Known for its water retention, thickening, and bonding properties, it excels in improving workability, curing, and durability of materials. Particularly effective in cement mortars, tile adhesives, and sealants, it ensures high stability under varying conditions. Choose Arich Cellulose® HPMC for reliable performance and quality.
CAS No.: 9004-65-3
Type: Chemical Auxiliary Agent
Appearance: white to off-white powder substance.
Applications: wall putty,gypsum plaster,tile adhesive,Self-leveling mortar, dry-mix mortar, plastering, gypsum-based, cement-based, thermal insulation mortar
Formula Modification: Support.
Viscosity Range: 300-75,000 m Pa.s (Brookfield,2% water solution)

Q:What’s Your Sample Policy Of HPMC?
A: 100-500g free sample is available for depending on your needs.
Q:What is the dosage of HPMC in C1 and C2?
A: For C1, we suggest 2kg-2.5kg per ton. And 2.5kg-3kg per ton for C2!
Q:What are the applicable ranges of different grades of tile adhesive?
A:
C 1:Suitable for ceramic tiles and vitrified tiles with low water absorption rate and Laying natural stone materials such as ceramic tiles, glazed tiles, marble, etc.
C 1 T:Suitable for ordinary ceramic tiles and ceramic mosaics with a water absorption rate greater than 6%; Decorative ceramic tiles with a water absorption rate of ≥ 0.2% and a size of ≤ 400 × 800mm.
C 2 T:Suitable for decorative tiles with a water absorption rate of 0.5% <E < 3%, or 0.2% < E < 0.5%, and a size ≤ 600 × 1200mm.
C 2 E S 1:Suitable for ceramic slabs, rock slabs, etc. with a size not exceeding 2.4m * 1.2m for indoor wall pasting.
C 2 T S 1:Suitable for pasting ceramic slabs, rock slabs, etc. with a size not exceeding 2.4m * 1.2m on indoor walls.
Q:What are the differences in the thickness of different masonry mortars?
A: General purpose masonry mortar:mortar layer thickness more than 5mm. Thin-layer masonry mortar:mortar layer thickness less than 5mm.
Q: What should be considered when choosing HPMC for different applications in gypsum-based mortars?
A:
Focus on type, performance, and viscosity:
Type Selection:
Choose HPMC designed specifically for construction. These products offer better thermal stability and longer open times.
Performance Considerations:
Water Retention: Ensures moisture stays within the mortar, enhancing quality.
Adhesion: Improves bonding to substrates, increasing structural integrity.
Crack Resistance: Reduces shrinkage cracks during drying, improving durability.
Viscosity Guidelines:
For standard applications, use HPMC with a viscosity of 4000 to 8000 mPa·s for good workability and water retention.
For improved flow and extended open time, opt for 8000 to 15000 mPa·s viscosity.
Q:What important roles does Hydroxypropyl Methylcellulose (HPMC) play in gypsum-based mortars and drywall production?
A: HPMC serves multiple critical functions in gypsum-based materials:
Enhanced Workability: Increases the lubricity and plasticity of the mortar, making it easier to apply and smooth out.
Improved Water Retention: Reduces rapid surface moisture evaporation, ensuring uniform water distribution within the material, thus enhancing product quality.
Increased Adhesion: Enhances the mortar’s bonding to substrates, improving structural stability and durability.
Controlled Setting Time: Regulates open time and setting speed, providing a flexible working window for application.
Crack Resistance: Helps minimize shrinkage cracks during drying, improving durability and aesthetic appeal.
Optimized Surface Finish: Improves the smoothness and consistency of the final product.