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EFOX® 30 is an aromatic perester, containing tert-butyl peroxybenzoate, for curing or initiating polymer resins at elevated temperatures. It has an assay of 98% and an active oxygen content of 8.07%.
EFOX® 30 is a high-purity tert-butyl peroxybenzoate designed as a free radical initiator for polymerization and copolymerization reactions. It can be used in the copolymerization of a wide range of resins, including ethylene, styrene, vinyl acetate, vinyl ester, acrylonitrile, acrylate, and methacrylate, providing rapid reaction initiation. It can also be used to cure unsaturated polyester resins or in combination with high-reactivity peroxides for pultrusion formulations at a temperature range of 100°C to 150°C. This aromatic perester is compliant with various regulatory requirements, including REACH regulations EC No 1907/2006 and EC No 1272/2008 and Commission Regulation EU No 2015/830.
Appearance: Clear liquid
Color: 40 Pt-Co/APHA max
Density @ 20°C: 1.04 g/cm³
Viscosity @ 20°C: 7 mPa·s
Active oxygen content: 8.07% min
Assay: 98.0% min
THBP: 0.1% max
SADT: 60°C
Shelf life: 12 months
CAS No. 614-45-9
Primary Chemistry: Tert-butyl peroxybenzoate
Slow or improper curing of resins Failure to polymerize vinyl ester resins
Production of ethylene, styrene, vinyl acetate, vinyl ester, acrylonitrile, acrylate, and methacrylate Pultrusion
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