pvac  is for industrial usage. The PVAC Granule is also called polyvinyl acetate granule. It can be divided into higher, middle and lower molecular. higher molecular PVAC Granule is normally used for Glass Fiber Reinforced Plastics (GFR), like in Light Cover for automobiles; Lower molecular PVAC Granule is used in Cement concret to form a more stable floor deck for buildings. 
 

Main Parameters:

Molecular: 100,000 to 300,000

Free Acid (CH3COOH): less than 0.05%.

Volatilizer: Less 1%.

Pb: Less 1.0mg/kg.

As: Less 3.0mg/kg.

Heavy metal: Less 10mg/kg.