Initiator for (co)polymerization of acrylates and methacrylates. CAS number: 686-31-7 EINECS/ELINCS No: 211-687-3 Applications: Trigonox 121, tert-amyl peroxy-2-ethylhexanoate, is a perester which is used for the curing of unsaturated polyester resins at high temperatures. Trigonox 121 is preferred for the curing of UP resin based Hot Press Molding formulations (such as DMC and BMC) in the temperature range of 120-160°C as such or as a kicker in combination with a low reactive peroxide like e. g. Trigonox C or Trigonox 127. The low reactive peroxide must be included in the formulation in order to achieve a complete cure. Information provided by Nouryon |