Hydroxypropyl methyl cellulose HPMC has good thickening, dispersing, emulsifying, film-forming properties, etc. It is the first choice for production of high quality building materials additives.
In building materials, the addition amount of HPMC is very low, only 0.1%-1%, but it plays an irreplaceable role.
The wall putty is also named skim coat, it is a decorative and functional trowelling plaster material for interior or external wall building. The function is to remove uneven defects on the surface of the base materials of wall, and eliminate the stress between different coating layers.