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| Place of Origin: | China |
| Brand Name: | Golden Grain |
| Certification: | ISO9001, COA,SDS |
| Model Number: | GLMA-822 |
| Minimum Order Quantity: | 100kg |
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| Price: | USD1.39/KG FOB QINGDAO ‑6.94 USD/KG FOB QINGDAO |
| Packaging Details: | 25kg/Bag with Paper Drum and PE Inner |
| Delivery Time: | 7 - 10 working days |
| Payment Terms: | L/C, T/T, D/P, D/A |
| Supply Ability: | 15000MT PER YEAR |
| Viscosityrange: | 40000‑200000 MPa·s (2% Aqueous Solution) | Carbonization Temperature: | 190-200℃ |
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| Shelf Life: | 2 Years | Thermalgelationtemperature: | Between 50°C And 90°C Depending On Grade |
| Usage: | Building Material Additive | Cas No: | 9004-65-3 |
| Methoxycontent: | 19% - 24% | Gelation Temperature: | 58‑64℃ |
| Other Names: | HPMC, Hypromellose | Keywords: | HPMC, Hydroxypropyl Methyl Cellulose, Building Additive |
| Einecs No: | 231-545-4 | Classification: | Chemical Auxiliary Agent |
| Density: | 1.27 G/cm³ |
Construction Grade HPMC (Hydroxypropyl Methyl Cellulose) is a non‑ionic cellulose widely used as water retention agent, thickener, binder and workability improver in building chemical industry. Manufactured from high‑purity refined cotton through advanced etherification reaction, our building‑grade HPMC features stable viscosity, excellent water‑retaining capacity, good anti‑sagging performance and easy dispersion. It can significantly improve construction performance of dry‑mix mortar, reduce water loss, extend open time and enhance bonding strength for various building materials.
Our HPMC for construction covers multiple viscosity grades including 40000cps, 75000cps, 100000cps, 150000cps, 200000cps to satisfy different formula requirements from wall putty, gypsum plaster, tile adhesive to self‑leveling compound.
Our construction grade HPMC is an essential additive for dry‑mixed building chemicals, suitable for below scenarios:
Wall putty & skim coat: Improve water retention, avoid cracking and powder‑fall off on wall surface.
Tile adhesive & tile grout: Boost open time and bonding strength, prevent tile hollowing and falling off.
Gypsum plaster, gypsum joint filler: Optimize setting time, enhance constructability and surface smoothness.
Dry mixed cement mortar, plastering mortar: Reduce water consumption, promote hydration reaction.
Self‑leveling cement compound: Offer stable thickening, avoid segregation and bleeding.
External thermal insulation composite system (ETICS) mortar for building insulation projects.
| Application | Key Benefits Provided |
| Cement-based tile adhesive | Extended open time, improved bond strength, anti-slip of tiles |
| Ceramic tile grout | Consistent rheology, reduced shrinkage and cracking |
| Cement plaster & render | Better workability, reduced sagging, smoother finished surface |
| Putty powder (interior/exterior) | Easy application and sanding, good surface flatness |
| Gypsum products (plaster, joint compound) | Water retention, strong adhesion, crack control |
| Self-leveling underlayment | Proper flowability, anti-segregation of aggregates |
| External wall insulation systems (EIFS/ETICS) | Uniform mortar consistency, reliable base-coat bonding |
| General dry-mix mortars | Balanced water retention + workability + strength performance |
0.1%–0.5% of the total dry mix weight, depending on application type, binder system and target consistency. The final dosage should be optimized through formulation trials.
| 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 |
Packing: 25kg kraft paper bag with PE inner liner. Customized packing is available upon customer request.
Storage: Keep sealed in cool, dry and ventilated warehouse, avoid direct sunlight and moisture. Seal tightly after opening the bag. Shelf life is 24 months under proper storage condition.
We are professional supplier of cellulose for construction industry. Strict quality control for every batch of HPMC, complete test reports including COA, MSDS available. We support sample testing before bulk order. Flexible MOQ for trial order and large‑volume project procurement. Stable supply capacity to meet long‑term order demand.
If you have specific viscosity, particle size or formula requirement, welcome to send us inquiry, our technical team can offer suitable solution for your building chemical products.
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.
