Hydroxypropyl Methylcellulose (HPMC) is a highly versatile polymer widely utilized across various industrial sectors, including coatings, construction, and personal care. Its functional properties, such as thickening, binding, film-forming, and water retention, are significantly influenced by its viscosity grade. As a prominent manufacturer and supplier of HPMC, we are committed to providing comprehensive information to help you select the optimal grade for your specific industrial applications.

The classification of HPMC grades, such as HPMC K100m (CAS No: 9004-65-3), is primarily based on its viscosity, measured in milliPascals per second (mPa·s) under specific test conditions. The viscosity is a direct indicator of the polymer chain length and molecular weight. Understanding these viscosity grades is crucial for achieving precise performance characteristics in formulations. If you are looking to buy HPMC for industrial use, careful consideration of viscosity is key.

The Significance of HPMC Viscosity Grades

The viscosity of HPMC plays a pivotal role in its performance within various industrial applications:

  • Coatings Industry: In paints and coatings, HPMC acts as a thickener and rheology modifier. Higher viscosity grades provide greater body and prevent sagging, while lower viscosity grades offer easier application and better flow. For example, HPMC K100m is often chosen for its high viscosity, contributing to excellent film build and stability in water-based coatings.
  • Construction Materials: HPMC is a vital additive in cement-based products, tile adhesives, renders, and gypsum plasters. It improves workability, water retention, adhesion, and crack resistance. The specific viscosity grade influences the consistency and application properties of these materials. Purchasing HPMC with appropriate viscosity ensures optimal performance in construction applications.
  • Personal Care Products: In shampoos, lotions, and creams, HPMC serves as a thickener and stabilizer, enhancing texture and stability. The choice of viscosity affects the product's spreadability and feel.
  • Detergents: HPMC can be used as a rheology modifier in liquid detergents, controlling viscosity for optimal dispensing and cleaning performance.

Choosing the Right Viscosity for Your Application

As a supplier, we understand that selecting the correct viscosity grade is critical for efficient formulation:

  • Low Viscosity (e.g., HPMC E3, E5): Generally preferred for applications requiring good flow and film formation without excessive thickening.
  • Medium Viscosity (e.g., HPMC K4M, K15M): Offers a balance of thickening and film-forming properties, suitable for a wide range of industrial uses.
  • High Viscosity (e.g., HPMC K100M, K150M): Provides significant thickening power and enhanced binding capabilities, ideal for applications demanding high consistency and stability.

We are a leading manufacturer in China offering a comprehensive portfolio of HPMC viscosity grades to meet diverse industrial requirements. We provide competitive HPMC prices and encourage you to buy HPMC from us for consistent quality and performance. Request a quote and samples to evaluate our products for your industrial needs.