HPMC plays three roles in putty powder, thickening, water retention and engineering construction.

Thickening: CMC can keep the solution uniform and avoid flowing suspension.

Water retention: The powder of the inner and outer walls is gradually dried, and the lime calcium is reflected in the application of water.

Construction: CMC has a practical wetting effect, which can make the inner wall putty powder have high-quality engineering construction.

HPMC does not participate in all chemical reactions, but only in filling. Inner putty powder, in the wall, is a chemical reaction because there is a new compound transformation, the inner wall putty powder comes out of the wall, milled, and then used because of the production of a new compound (calcium carbonate).