What is the use of hydroxypropyl methyl cellulose (HPMC) in building coatings?

Multiple advantages of HPMC in architectural coatings

Thickening and rheology modification

Addition of HPMC to a coating formulation increases the viscosity of the coating and improves the flow properties of the mixture. It helps prevent paint sagging and dripping, resulting in a smoother, more uniform coating.

Water Retention and Stability

HPMC retains water in the coating, preventing premature drying and ensuring that the coating remains workable for a longer period of time. This results in better leveling, improved adhesion and less cracking of the dried film.

Bonding and Film Formation

As the coating dries, HPMC forms a continuous cohesive film that binds the pigments, fillers and various additives together. This enhances the mechanical strength, flexibility and durability of the dried coating, providing long-lasting protection for building surfaces.

Compatibility and Stability

HPMC is compatible with a wide range of coating components and maintains good dispersion throughout the application process. It helps prevent particle phase separation, sedimentation and agglomeration, ensuring long-term coating stability.

Improved Adhesion and Substrate Wettability

The surface activity of HPMC improves the spreading of the coating on the substrate and promotes better adhesion. Reduces the risk of coating delamination, flaking and long-term failure.

Environmental and Health Benefits

HPMC is a non-toxic, biodegradable and environmentally friendly ingredient that is ideal for sustainable architectural coatings.HPMC does not release harmful volatile organic compounds (VOCs) during application, helping to improve indoor air quality and minimize environmental impact.

HPMC for building coating

Interior and exterior wall coatings
Textured coatings and plasters
Waterproofing membranes and sealants
Masonry and concrete coatings
Roof coatings and elastomeric systems
Fire protection coatings
Anti-corrosion coatings for metal surfaces



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