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Hydroxypropyl Methyl Cellulose Ether HPMC for Gypsum Plaster Based

December 26th 2023
SLEOCHEM

Hydroxypropyl Methyl Cellulose Ether (HPMC) is a non-ionic cellulose ether that is widely used in the construction industry, particularly in gypsum-based plasters. It is a white, odorless, and tasteless powder that is soluble in water and various organic solvents.

HPMC is added to gypsum plaster for a number of reasons, including:

  • Improved workability: HPMC makes the plaster more workable by increasing its viscosity and thixotropy. This means that the plaster is easier to apply and spread, and it is less likely to sag or drip.
  • Reduced cracking: HPMC helps to prevent the plaster from cracking by improving its water retention. This is because HPMC forms a film around the gypsum particles, which slows down the evaporation of water.
  • Increased strength: HPMC can also increase the strength of gypsum plaster. This is because it improves the adhesion between the gypsum particles and the substrate.
  • Enhanced durability: HPMC can help to improve the durability of gypsum plaster by making it more resistant to abrasion and chipping.

In addition to the benefits listed above, HPMC is also a non-toxic and environmentally friendly material. It is biodegradable and does not contain any harmful chemicals.

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