... for all types of synthetic rubber and natural rubber Rubber Antioxidant Agent 6PPD(4020) Chemical Name: N-(1,3- ... organic solvents, insoluble in water.Application: As a kind of ursol rubber antioxidant, 6PPD has better compatibility with rubbers, seldom ... blooming, low volatility, low toxicity, with excellent antioxidant, anti-ozone, anti-flex cracks , anti-insolation cracks, strong ...