... with powder,flake, granular form. 2, have many grade of PVA, PVA1799, PVA2499, PVA1788, PVA2488 HOT1.Pvoh is widely used in ... formula for some of the PVA is -[CH2CHOH]n-[CH2CHOOCCH3]m-. PVA is non-toxic, insipid and harmless. PVA is water-soluble and ... can withstand oils, lubricants, hydrocarbons and most other organic solvents. PVA has better chemical stability and insulatibility, and provide ease in ...