Polyvinyl Alcohol Powder PVA

Item	Specification
model	1788	2488
Fineness	120mesh	120mesh
Viscosity (4% aqueous solution)	20.5-24.5	45-55
Alcoholysis degree mole%	87.0-89.0	87.0-89.0
Ash %max	0.4	0.3
Volatile content %max	5	5

Polyvinyl alcohol powder is a water-based adhesive with excellent performance. Generally, the product is flake, granular or turbulent, and it must be heated when it is difficult to dissolve in cold water. After it is finely pulverized and surface treated, it can have better cold water solubility. However, due to its thermoplasticity, it has high requirements for crushing processing. Yida adopts a unique liquid nitrogen low-temperature cooling process to ensure uniform fineness of powdered materials, so that it has excellent water solubility and cohesive force.

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