● HPMC (Hydroxypropyl Methylcellulose)
● MHEC / HEMC (Methyl Hydroxyethyl Cellulose / Hydroxyethyl Methylcellulose)
Overview
Wall putty, also known as skim coat, is a thin finishing layer applied to walls before painting or wallpapering. It provides a smooth, uniform surface and improves adhesion for top coatings. To ensure excellent workability, crack resistance, and long-lasting performance, modern wall putty formulations rely heavily on cellulose ethers like HPMC and MHEC.
At Hehui Chemical, we offer high-purity HPMC and MHEC products that are specifically engineered for use in cement-based and gypsum-based skim coats. Our additives enhance every aspect of the application process — from mixing to final finish.
Water Retention
Maintains adequate moisture during setting, allowing better cement hydration and preventing surface cracks or premature drying.
Workability Enhancement
Improves spread ability, smoothness, and ease of troweling — especially important for thin layers.
Open Time & Application Efficiency
Longer open time means fewer interruptions and more efficient on-site performance.
Anti-Sagging and Thixotropy
Improves vertical hold and consistency, allowing thick applications without dripping or sagging.
Surface Quality
Ensures a fine, pinhole-free finish that boosts paint adhesion and final appearance.
High viscosity stability and purity
Excellent compatibility with white cement and gypsum
Tailor-made grades for tropical and cold climate performance
Reduced air-entrainment for smoother surface
Produced in ISO-certified factories with advanced technology
Packaging: 25kg kraft bags with inner PE liner
Shelf Life: 2 years under dry, sealed conditions
Storage: Avoid direct contact with moisture and store in a cool, dry place
As a leading manufacturer of HPMC and MHEC for wall putty, we provide not only products but also technical support to help you formulate high-performance, cost-effective putty for every market.
Let us help you develop better-performing wall putty solutions!
Looking for customized CMC solutions for your industry?
Contact our technical team to find the right grade for your application.