Trigonox 75 VRN

Product Line Organic peroxides

MEKP formulation for curing unsaturated polyester resins in the presence of a cobalt accelerator at room and elevated temperatures, suitable for curing thick laminates.

  • Brand

  • Chemical family

    Organic peroxide
  • CAS number

  • Physical form

  • Regional availability

    Africa, Europe, India, Middle East
  • Chemical name

    Methyl ethyl ketone peroxide
  • Molecular drawing

    Organic peroxide
  • Applications

    Trigonox® 75 VRN is a methyl ethyl ketone peroxide formulation for the curing of unsaturated polyester resins in the presence of a cobalt accelerator at room and elevated temperatures. Trigonox® 75 VRN offers all the advantages of standard Trigonox® 75. The Trigonox® 75 VRN includes a vanishing red indicator system that in most cases virtually disappears during cure. The red color is there when you need it i.e. during the mixing step, but will disappear during cure. In thin laminates up to approx. 4 mm Trigonox® 75 VRN performs comparable with Butanox M-50, however, in thicker laminates up to approx. 10 mm Trigonox® 75 VRN gives a reduced peak exotherm at equal gel time and curing time. Therefore, Trigonox® 75 VRN is suitable for the cure of both thin and thick sections in one particular product.

Market Segments

Thermoset composites

Detailed description

Peroxide mixture, specially developed for the production and cure of thick laminates and for applications where a high peak exotherm should be avoided. Applications such as pipes, tanks, windmill rotors.


  • Curing agent


  • Resin Transfer Molding,
  • Filament winding,
  • Hand lay-up & spray-up
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Get in touch!

For more information about Trigonox 75 VRN, please contact our technical experts. We look forward to hearing from you.

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