Does HPMC participate in chemical reactions on Skim coat/Wall putty?
HPMC mainly have the effect of thickening, water-retention and constructability in Putty powder: Thickening: HPMC can thicken the solution and give the solution suspension and consistency effect. Have good effect of anti-sagging. Water-retention: Let putty powder dry more slowly, assist hydrated reaction of ash-calcium. Constructability: HPMC’s lubrication action gives putty powder good constructability.
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