Gerneral Overview
High temperature resistant hpmc 2208 for plastering mortar is a targeted additive for high-temperature plastering construction. Our hydroxypropyl methyl cellulose effectively solves rapid drying and early cracking problems under high temperature.
Core Product Advantages
1. Early Cracking Prevention: Locks moisture uniformly at high temperature, avoids plastic cracking caused by surface drying while inner layer remains wet, improves integrity of plaster layer.
2. No Surface Skinning: Slows down surface drying speed, leaves no obvious marks on large-area plastering joints, delivers flat and smooth surface.
3. Smooth Plastering Feel: Mortar maintains good plasticity at high temperature, ensures labor-saving scraping and no knife sticking, improves construction efficiency.
4. Enhanced Base Adhesion: Ensures full cement hydration, achieves firm bonding with base layer and reduces hollowing and falling off risks.
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. Summer Exterior Wall Plastering: Solves rapid drying and cracking problems in high-temperature construction.
2. Interior Plastering in Dry-hot Areas: Improves flatness and construction efficiency of plaster layer.
3. Mechanized Spraying Construction: Maintains pumping and spraying stability at high temperature.
4. Gypsum Plastering Mortar: Compatible with gypsum systems and extends construction time at high temperature.
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.
