Cellulose for Skim Coat/Wall Putty

Application of HPMC in Skim Coating

HPMC (Hydroxypropyl Methyl Cellulose) is a common ingredient in skim coating, which is a process used to create a smooth and level surface on walls and ceilings before painting or applying wallpaper. Skim coating is typically done on surfaces that have been damaged, uneven or rough.

The addition of HPMC to skim coating mixtures can improve the workability, adhesion, and durability of the skim coat layer.

Here are some of the key benefits of using HPMC in skim coating:

  1. Improved workability: HPMC acts as a rheology modifier, which helps to improve the workability and spreadability of the skim coating mixture. This makes it easier to apply the skim coat layer evenly and smoothly.
  2. Water retention: HPMC has a high water retention capacity, which helps to keep the skim coating mixture moist for a longer period. This improves the bonding strength of the skim coat layer and ensures better adhesion to the surface.
  3. Improved durability: HPMC helps to increase the durability of the skim coat layer by reducing shrinkage and cracking. This makes the surface more resistant to wear and tear.
  4. Better consistency: HPMC helps to create a uniform and consistent texture in the skim coating mixture, which results in a smoother and more even surface on the wall or ceiling.

Overall, the addition of HPMC in skim coating mixtures helps to enhance the performance of the mixture and provides better results in terms of workability, adhesion, and durability.

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