Trigonox 77C

Product Line Organic peroxides

Trigonox® 77C is a special peroxide blend used for high-temperature curing.

  • Brand

  • CAS number

    3457-61-2; 6731-36-8
  • Physical form

  • Regional availability

    Africa, Asia, Asia Pacific, China, Europe, Global, India, Latin America, Middle East, North America, Oceania
  • Chemical name

    Mixture of 1,1-di(tert-butylperoxy)-3,5,5-trimethylcyclohexane and tert-butyl cumyl peroxide, 75% in odorless mineral spirits
  • Molecular drawing

  • Applications

    Trigonox® 77C is a peroxide mixture, which is used for the curing of unsaturated polyester resins at elevated temperatures.Trigonox® 77C can be used instead of Trigonox® C for the curing of UP resin based hot press moulding formulations (SMC, BMC etc.) and electro insulation lacquers in the temperature range of 100  170°C.Trigonox® 77C is not, or much less, sensitive for reducing agents like metals, metal based pigments, fillers or amines than peresters like Trigonox® C. The stability at ambient temperatures of hot press moulding formulations or electro insulation lacquers initiated with Trigonox® 77C is therefor much longer than those initiated with a perester like Trigonox® C.Trigonox® 77C shows at elevated temperatures a comparable reactivity as Trigonox® C. The reactivity of Trigonox® 77C cannot be increased by the addition of a cobalt accelerator.

Market Segments

Thermoset composites

Detailed description

Trigonox® 77C is a special peroxide blend (75% active ingredient in odorless mineral spirits) used for high-temperature curing.


  • Curing agent


  • Resin Transfer Molding
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