445 is a white powder that is relatively nondiscoloring during heat aging. The combination of high amine antioxidant activity and good color make it an ideal antioxidant and heat stabilizer for rubbers and plastics. Especially effective in EPDM, Neoprene, nitrile , hydrogenated nitrile and ethylene-acrylic rubbers. As an amine antioxidant, it is susceptible to UV discoloration
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