Product Introduction
Construction Grade HPMC (Hydroxypropyl Methyl Cellulose / Hypromellose) is a high-performance functional building additive widely used in modern dry-mix construction materials. Produced from high-purity refined cotton through advanced physical and chemical processing, this HPMC powder features stable viscosity, excellent water retention, smooth dispersion and reliable batch stability. It greatly optimizes construction performance and final surface quality of various cement and gypsum-based products. Suitable for large-scale industrial mortar production and engineering construction projects worldwide.
Our factory provides full-range viscosity options from 40000cps to 200000cps, perfectly matching different formulas for wall finishing, tile installation, plastering and insulation mortar. Custom specifications are available for special construction formula demands.
Key Product Performance Features
- Excellent Water Retention: Effectively lock moisture inside mortar, prevent rapid drying during high-temperature and long-time construction. Ensure full hydration of cement and gypsum, reduce hollowing, peeling and surface cracking issues.
- Strong Anti-Slip & Vertical Stability: Improve mortar cohesion and suspension performance. Keep plastering materials stable on vertical walls and ceilings without flowing or dropping, ideal for hand trowel and machine spraying construction.
- Prolonged Working Time: Significantly extend the open time of tile adhesive and finishing mortar, allowing more time for tile adjustment, surface smoothing and on-site modification.
- Superior Construction Smoothness: Optimize mortar fluidity and ductility, reduce construction resistance, improve troweling effect and make wall surface finer and flatter after curing.
- High Compatibility: Perfectly compatible with cement, gypsum, lime powder and various building additives. No agglomeration or stratification during mixing, ensuring uniform mortar performance.
- Fast Cold Water Dispersion: Easy to dissolve in normal temperature water, no massive lumps, simple operation and stable mixing effect.
Wide Range of Applications
This construction-grade HPMC is an essential additive for all kinds of dry-mix building materials, widely applied in the following fields:
- Interior and exterior wall putty, skim coat and finishing mortar
- Ceramic tile adhesive, tile grout and joint filling materials
- Gypsum plaster, gypsum repairing mortar and gypsum leveling compounds
- Cement plastering mortar, masonry mortar and bonding mortar
- External wall thermal insulation mortar and protective mortar
- Self-leveling cement floor mortar and decorative building mortar
Typical Batch Analysis (COA)
| Item | Typical Result |
| Appearance | White powder, conforms |
| pH Value (1%, 25°C) | 6.36 |
| Apparent Viscosity | 15.3 cps |
| Insoluble in Water | 0.4% |
| Loss on Drying | 2.5% |
| Residue on Ignition | 0.64% |
| Heavy Metals | < 10 ppm |
| Arsenic | < 2 ppm |
| Methoxyl Content | 28.2% |
| Hydroxypropoxy Content | 8.4% |
| Total Bacteria Count | 28 cfu/g |
| Total Mold & Yeast Count | 19 cfu/g |
| Escherichia Coli | Negative |
Packaging & Storage
Standard packing adopts 25kg kraft paper bag with inner PE moisture-proof lining. Custom packaging is acceptable for bulk orders. Store in cool, dry and ventilated warehouse, keep away from moisture, high temperature and direct sunlight. Keep tightly sealed after use to maintain stable performance.
Our Advantages
We are a professional manufacturer focusing on construction chemical additives. All HPMC products undergo strict quality inspection before delivery. Complete documents including COA, MSDS and test reports can be provided. We support free sample testing, small trial orders and large-volume project supply. With stable production capacity and mature export experience, we provide reliable building material solutions for global mortar manufacturers and construction suppliers.
If you are looking for stable-quality construction HPMC with customized viscosity, welcome to contact us for latest wholesale price and technical support.
Why Choose Us
- Factory-direct supply with stable quality and batch-to-batch consistency
- Full documentation package: Specification, COA, MSDS
- Flexible viscosity grades and packing options tailored to your mortar formulation
- Experienced export service with fast response
Qingdao Golden Grain Chemical Co., Ltd, invested by Golden Grain Group Limited, one professional manufacturer and exporter since 2000, is devoted to supplying products and solutions to food & beverage, medicine, animal feed & nutrition, personal care & household, construction, agriculture.
Golden Grain Group Limited have professional staff, advanced production lines and complete lab equipment, pass GMP, HACCP, ISO, HALAL, KOSHER, BRC, GMP-Free, and other necessary certificates, which ensure our quality to be international standard. For many years' experience, we are exporting our products to more than 60 countries in the world.
"Quality Products", "Efficient Service", Golden Grain Group Limited hope to enter good business cooperation with customers at home and abroad for long.
