... and harfulless, used in UPR,plasticizer,surfactant,antifreeze,emulsifier,softener Propylene glycol (PG C3H8O2 ) is a colorless liquid with steady viscosity ... ,coolant,ice inhibitor and moisture preserving agent for tobacco. Propylene GlycolClassification:Industry GradeCAS No.:57-55-6Purity:99.5%minDescription ... for UP resin,antifreeze,moisturizer,high purity 99.5% Propylene Glycol industrial grade