Paint or coating is a chemical mixture that can firmly coat surfaces for protection, decoration, signage and other purposes. It is generally composed of four parts: film-forming substances, fillers (pigments and fillers), solvents, and additives. The composition may vary slightly depending on performance requirements.Most paints are either oil-based or water-based and each has distinct characteristics.

The Role Of HPMC In Paints & Coatings

●Thickening Agent: HPMC acts as a thickening agent in water-based paints. It increases the viscosity of the paint formulation, providing better control over application and preventing sagging or dripping. HPMC helps to achieve the desired consistency and texture of the paint.

●Water Retention: HPMC has excellent water retention properties, which are beneficial in paint formulations. It helps to prevent the rapid evaporation of water from the paint during application, thus extending the open time and allowing for better workability and brushability.

●Binding Agent: HPMC acts as a binder in paint formulations, enhancing the adhesion of the paint to various substrates. It improves the film formation and increases the durability and resistance of the paint coating.

●Suspension Stabilizer: HPMC helps in stabilizing pigments and other solid particles in the paint formulation. It prevents settling and sedimentation of particles, ensuring uniform distribution and color consistency throughout the paint.

●Anti-Spattering Agent: HPMC reduces spattering during paint application. It improves the flow and leveling properties of the paint, resulting in a smoother and more even finish.

Rheology Modifier: HPMC modifies the rheological properties of paint, such as viscosity, shear thinning behavior, and flow characteristics. It provides better control over the application process and improves the brushability and roller coverage of the paint.

●Improves Paint Film Properties: HPMC enhances the overall performance of the paint film. It improves the abrasion resistance, scrub resistance, and water resistance of the dried paint coating. HPMC also contributes to the flexibility and durability of the paint film, reducing the likelihood of cracking or flaking.

●Reduces Foaming: HPMC acts as an antifoaming agent in paint formulations. It helps to minimize the formation of foam during paint mixing and application, resulting in a smoother finish.

The Role of HEC in Paints & Coatings

●Increases paint color compatibility:Pigments are one of the main components of paints or coatings, but different pigments may have different compatibilities. Adding SLEO HEC can improve the dispersibility of pigments and enhance the compatibility between pigments and paints, ensuring the quality and stability of the coatings.

●Improves sag resistance:Paints or coatings applied on vertical surfaces are prone to sagging. Adding SLEO HEC can increase the viscosity and consistency of paints, reducing their flowability and improving their sag resistance, making them easier to control during application.

●Enhances workability and prevents spattering:SLEO HEC can moderate the viscosity of paints or coatings, making them easier to apply. Moreover, due to the increased thickness of the coating, the risk of spattering can be reduced, making the application process safer.

●Maintains sustainable precipitation levels:SLEO HEC can absorb a significant amount of water and retain it in the coating, maintaining the surface level and stability of the coating. This can help maintain relatively stable precipitation levels under different environmental conditions, prolonging the service life of the coating.

●Improves adhesion:SLEO HEC can improve the adhesion between the coating and the substrate, enhancing the durability of the coating and preventing peeling or chipping.

●Reduces foam formation:SLEO HEC can reduce the amount of foam generated during the mixing and application of the coating, improving the overall quality of the coating.

If you want to know more about the application of HPMC and HEC, please contact us!