General Overview
High temperature resistant hpmc powder high viscosity grade is designed for dry-hot climate thick-layer construction. Our hydroxypropyl methyl cellulose features higher gel temperature and long-lasting water retention, maintains stable performance under dry heat conditions.
Core Product Advantages
1. Excellent Heat Resistance: Gel temperature reaches around 75℃, molecular structure remains stable under extreme high temperature with no sudden viscosity drop.
2. Long-lasting Water Locking Capacity: High-viscosity molecules + high-temperature modification lock moisture for a long time in dry and hot environments, slows down drying speed.
3. High-temperature Sag Resistance: Maintains good structural viscosity at high temperature, no sagging or falling off during thick-layer construction.
4. Dry-hot Condition Adaptation: Optimized for desert and tropical dry-hot regions, solves the problem of rapid performance attenuation of ordinary HPMC at high temperature.
Product Specifications
Construction-grade Hydroxypropyl Methyl Cellulose (HPMC) 2208 (modified high-temperature resistant grade) is a specialized core additive for dry-mix building materials optimized for high-temperature construction environments. It delivers excellent high-temperature water retention and stronger thermal stability, can greatly extend the open time and adjustable time of mortars in extremely hot conditions, and prevent rapid drying skinning and early cracking; it improves system workability and sag resistance, reduces application resistance, maintains stable performance over a wide pH range, and has good compatibility with cement, gypsum and various construction additives. With easy powder dispersion, fast dissolution and stable batch quality, it is particularly suitable for 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 in summer high-temperature construction and dry-hot climate regions.
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 | 70 – 75 ℃ |
| Water Retention Rate (standard cement mortar, 35℃) | ≥ 88 % |
| Fineness | ≥ 98 % passing 80 mesh sieve |
Application Scenariors
1. Thick-layer Putty in Dry-hot Areas: No cracking or sagging under high temperature and dry conditions.
2. Exterior Wall Insulation in Tropical Regions: Ensures stability and bonding strength of insulation mortar.
3. High-temperature Plastering: Reduces cracking and hollowing problems in high-temperature construction.
4. Tile Laying in Dry-hot Areas: Extends open time and improves tiling quality.
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.
