HPMC viscosity refers to the thickness or flow resistance of its aqueous solution. It is commonly measured in millipascal-seconds (mPa.s) using a 2% solution with a Brookfield viscometer. HPMC is available in a wide viscosity range:
Low viscosity: 3 – 100 mPa.s
Medium viscosity: 100 – 40,000 mPa.s
High viscosity: 40,000 – 200,000+ mPa.s
The viscosity grade of HPMC affects several core functions:
Water retention
Adhesion
Thickening power
Film-forming ability
Workability and rheology
Selecting the right viscosity ensures optimal performance in your application.
Tile Adhesive & Mortar Systems
Recommended viscosity: Medium to high (30,000 – 75,000 mPa.s)
Function: Enhances water retention, anti-sagging, and workability
Explore HPMC for Tile Adhesive
Self-Leveling Compounds
Recommended viscosity: Low to medium (5,000 – 20,000 mPa.s)
Function: Ensures smooth flow and self-leveling ability while maintaining strength
Discover HPMC for Self-Leveling
Pharmaceutical Applications: Viscosity for Controlled Release and Processing
Sustained Release Tablets
Recommended viscosity: Medium to high (15,000 – 100,000 mPa.s)
Function: Forms gel matrix for controlled drug release and serves as binder/film-former
Capsules and Emulsions
Recommended viscosity: Low viscosity (3 – 15 mPa.s)
Function: Enhances dispersibility, improves processability
Emulsification & Thickening
Recommended viscosity: Low to medium (20 – 60,000 mPa.s)
Function: Improves mouthfeel, stabilizes emulsions, enhances thermal stability
Shampoo & Skincare Formulations
Recommended viscosity: Low (50 – 5,000 mPa.s)
Function: Provides clarity, controls viscosity, improves emulsion stability
Water-Based Paints
Recommended viscosity: Medium to high (20,000 – 100,000 mPa.s)
Function: Delivers excellent thickening, anti-sagging, and workability

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