Hydroxypropyl Methylcellulose (HPMC)
CAS Number: 9004-65-3
Hydroxypropyl methylcellulose (HPMC) is a non-ionic cellulose ether widely used as a thickener, water-retention agent, and film former in water-based architectural coatings. It provides excellent pseudoplastic rheology, improving sag resistance and open time for interior and exterior paints. HPMC is compatible with most latex systems and contributes to smooth application and leveling.
Technical Specifications
| pH | 6.0–8.0 (1% solution) |
| moisture | ≤5% |
| viscosity | 400–100,000 mPa·s (2% solution) |
| appearance | White to off-white powder |
| gelTemperature | 58–64 °C |
Applications
- Interior emulsion paints
- Exterior wall coatings
- Texture paints and renders
- Cement-based coatings
- Tile adhesives and grouts
Key Features
- Excellent water retention and open time
- Non-ionic, compatible with wide pH range
- Pseudoplastic rheology for sag resistance
- Improves workability and surface finish
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CAS Number
9004-65-3
Category
Architectural Coating AdditivesAvailability
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