HPMC for Paints/Coating | Reliable Cellulose-Paint Additives

20 May.,2024

 

HPMC for Paints/Coating | Reliable Cellulose-Paint Additives

Water-based paint is an eco-friendly alternative to traditional solvent-based paints. It has lower levels of VOCs. It can dry quickly and is easy to clean up. HPMC cellulose is a non-toxic powder. It can dissolve fast in cold water. It is a thickener, dispersant, and stabilizer in paint formulas.

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WOTAIchem is your trusted hydroxypropyl methylcellulose supplier in China. We manufacture HPMC powders under strict quality control systems. Our HPMC chemicals can be added to various paint formulas. For example, water-based paints and paint remover.

 

  • Uniform coating performance.
  • Enhance adhesion and fluidity.
  • pH stability. Beneficial for stable and vibrant paint color present.
  • Improve paint surface tension.

HPMC VS CMC: 7 Differences You Need to Know!

Melacoll 2022-09-13 13:29

If you don't distinguish HPMC and CMC, there are 7 differences you need to know. HPMC vs CMC: their differences mainly focus on Definition, Solubility, Water Retention, Ph Stability, Enzymatic Resistance, Price and Application.

No.1 HPMC VS CMC: different definition

HPMC is prepared by reacting alkali cellulose with chloromethane and propylene oxide. This process mainly take place on etherification of workshop.  Carboxymethyl cellulose (CMC) is a cellulose derivative formed by the reaction of alkali and chloroacetic acid.

N0.2 different solubility

HPMC dissolves easily in cold water and may be difficult to dissolve in hot water. But CMC is easy to dissolve in hot and cold water, and the solubility of HPMC in cold water is higher than CMC.

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No.3 different water retention

HPMC has better water retention than CMC. This is their big difference.

No.4 different PH stability

Melacoll™ HPMC remains stable in the range of pH 3~11. However, PH has a great effect on CMC, it is mainly used in gypsum rather than cement.

In a strongly alkaline environment, CMC’s viscosity will be lost. But HPMC will speed up its dissolution rate and increase its viscosity.

No.5 different enzymatic resistance

HPMC has better resistance to enzymes than CMC, so HPMC solution is less easily degraded by enzymes.

No.6 different price

HPMC price is evidently higher than CMC.

No.7 different application

CMC mainly apply to the food industry, toothpaste, diet pills, water-based coatings, detergents, and others. CMC proved to be a viable and superior alternative to HPMC as a goniometer solution.  The most common applications of HPMC include tile adhesive, paints and coatings, gypsum products, putty, food, cosmetics, detergents, and eye drops, among others.

This  is 7 difference between HPMC and CMC. However, whatever any products, their impact is important. If you want to know HPMC and MHEC difference, please click here.

If you want to learn more, please visit our website HPMC for gypsum.