General Overview
Hydroxypropyl methyl cellulose (HPMC) 2208 low-viscosity powder is a universal core additive for dry-mix building materials. As a professional hpmc manufacturer, our hpmc powder delivers balanced water retention and fluidity, effectively extends mortar open time, and has good compatibility with cement and gypsum systems. It is widely used in self-leveling and joint filler systems.
Core Product Advantages
1. Efficient Water Retention: Locks moisture in mortar under normal conditions, prevents rapid drying and cracking, ensures full cement hydration and improves final strength.
2. Excellent Leveling Performance: Low-viscosity formula endows mortar with outstanding fluidity and self-leveling property, reduces pumping and construction resistance, and delivers a smoother finished surface.
3. Wide pH Stability: Maintains stable performance in a wide pH range, compatible with most construction additives without delamination or demulsification risks.
4. Fast Dispersion & Dissolution: Uniform 80-mesh fineness ensures good dispersibility in dry mixes, dissolves quickly without agglomeration after adding water, and greatly improves mixing efficiency.
Product Specifications
Construction-grade Hydroxypropyl Methyl Cellulose (HPMC) 2208 is a universal core additive for dry-mix building materials. It boasts excellent water retention and thickening performance, extends the open time and adjustable time of mortars, and is suitable for conventional and dry construction environments; it improves the workability and sag resistance of the system, reduces application resistance, maintains stable performance in a wide pH range, and has good compatibility with cement, gypsum and various construction additives. With easy dispersion, fast dissolution and stable batch quality, it is widely applicable to dry-mix building material systems such as tile adhesives, interior and exterior wall putties, plastering mortars, self-leveling compounds, joint fillers and exterior wall insulation mortars.
Key Technical Specifications：
| Item | Standard Index |
| Appearance | White to off-white powder |
| Viscosity (2% aqueous solution, 20℃) | 5 – 200,000 mPa·s (multiple viscosity grades available) |
| pH Value (1% solution) | 5.0 – 8.0 |
| Loss on Drying | ≤ 5.0 % |
| Residue on Ignition (ash content) | ≤ 1.5 % |
| Methoxyl Content | 19.0 – 24.0 % |
| Hydroxypropoxyl Content | 4.0 – 12.0 % |
| Gel Temperature | 65 – 70 ℃ |
| Water Retention Rate (standard cement mortar) | ≥ 90 % |
| Fineness | ≥ 98 % passing 80 mesh sieve |
Application Scenarios
1. Self-leveling Mortar: Provides moderate thickening and water retention, ensures floor flatness and reduces surface cracking.
2. Joint Filler: Improves construction smoothness, prevents drying shrinkage cracking, and keeps joint surface flat and aesthetic.
3. Interface Mortar: Enhances the adhesion of interface agent and improves the bonding strength of the base layer.
4. Common Plastering Mortar: Serves as an economical water-retaining and thickening agent to improve construction workability.
Company Strength
Shandong LUFA New Material Group. is a professional manufacturer specializing in R&D, production and sales of cellulose ether products including hydroxypropyl methyl cellulose, sodium carboxymethyl cellulose and polyanionic cellulose. Established in 2009, we cover an area of 20,800 square meters with an annual output of over 30,000 tons. Our products have passed CE, FCC, RoHS and REACH certifications. Backed by a professional R&D team and strict quality control system, we adhere to the philosophy of "Quality First, Customer Supreme" and provide reliable cellulose ether products for global customers.
Packaging & Shipping
Packaging: Standard 25kg paper-plastic composite bag with inner moisture-proof film; 1000kg jumbo bag is optional. Customized packaging with your own logo is supported.
Shipping: We support sea freight (FCL/LCL), land transportation and international express for samples. All products undergo strict inspection before shipment to ensure good condition.
Delivery Time: 10-12 working days for regular stock orders; 15-20 working days for customized orders.
Transport Protection: Pallet reinforcement and stretch film wrapping are applied to avoid moisture and damage during transportation.
Our Service
Pre-sales Service: Free samples within 500g are available; 1-on-1 technical guidance for product selection; complete technical documents including TDS, SDS and COA are provided.
In-sales Service: Real-time order progress tracking; customized specification adjustment is supported; full assistance for commodity inspection and customs declaration.
After-sales Service: Professional technical team follows up application problems; quick response for quality issues; lifelong technical consultation support.
