Trigonox 263

Product Line Organic peroxides

Trigonox® 263 is a methyl ethyl ketone peroxide and cumyl hydroperoxide.

  • Brand

  • Chemical family

    Organic peroxide
  • CAS number

    1338-23-4; 80-15-9
  • Physical form

  • Regional availability

    Latin America, North America
  • Chemical name

    Methyl ethyl ketone peroxide and cumyl hydroperoxide, solution in 2,2,4-trimethyl-1,3-pentanediol diisobutanoate
  • Molecular drawing

    Organic peroxide
  • Applications

    Trigonox® 263 is a convenient pre-blended initiator suitable for curing unsaturated polyester, vinyl ester and acrylic thermosetting resins at ambient conditions in conjunction with a metal salt. Trigonox® 263 produces lower exotherms than standard MEKPs and is useful in warm and hot weather climates. Applications include cast polymer and laminates. Additional end-use information is available in Nouryon’s application brochures.

Market Segments

Thermoset composites

Detailed description

Trigonox® 263 is an initiator blend for limiting exotherm or increased working time in unsaturated polyester, vinylester and acrylic thermosetting resins.


  • Curing agent


  • Centrifugal casting,
  • Hand lay-up & spray-up,
  • Infusion,
  • Resin Transfer Molding
Read more

Get in touch!

For more information about Trigonox 263, please contact our technical experts. We look forward to hearing from you.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Send email