445 is heat resistant (slightly staining) antioxidant. It is a slightly staining & discoloring antioxidant being stable at
high temperature, is used for protection against heat and oxidative degradations in NR and synthetic rubbers
including BR, SBR, NBR, CR and EPDM covering uses in beltings, hoses, seals, gaskets and other
automotive/industrial rubber products. In combination with synergistic antioxidants it provides an extremely
effective antioxidant system for EPDM and NBR compounds for high temperature applications. Often used as
aqueous dispersions in latex compounds (SBR, Carboxylated SBR and NR) for improving resistance to heat and
embrittlement during aging with as little 0.5 phr in the compound. Typical dosages in rubber vary from 1 to 3 phr
depending on the application envisaged.
Storage and Handling
Store in a cool, dry & well-ventilated place, local exhaust recommended. Keep container closed when not in use.
No special handling precautions are necessary. Normal precautions to avoid contact with skin and eyes should be
followed. For eyes, flush with plenty of water and seek medical advice.