
PVA powder is used in construction mortar additive, which can improve the mortar flexibility, water-retaining property and cohesiveness. It can reduce mortar friction and increase efficiency and quality. Moreover, it can protect plaster layer from cracking, dropping and enhance the adhesive strength and flatness.
PVA Powder Property and Application
Physical and Chemical Indicators
Item |
24-88 |
17-88 |
Average degree of polymerization |
2400-2500 |
1700-1800 |
Molecular weight
|
118000-124000 |
84000-89000 |
Viscosity |
44-50 |
21-26 |
Alkalisation degree |
86-89 |
86-89 |
Volatile matter content |
< 5 |
< 5 |
Ash content |
< 0.5 |
< 0.5 |
PH |
5-7 |
5-7 |
Fineness(mesh) |
> 120 |
> 120 |
Main Applications |
Interior wall putty powder |
Cement additives |
PVA powder uses composite bag packing with 25kg/bag. During transportation, the tools should be moisture-poof, rainproof, sun-proof and handle with care for protecting from scraping or breaking. PVA powder should put in a dry, ventilated indoor place with 5-30℃. Strictly prohibit stocking with volatile chemicals together to avoid its quality changing.