Trigonox 22-CL50

Product Line Organic peroxides

Trigonox® 22-CL50 is a special peroxide for smooth curing of unsaturated polyester resins at elevated and high temperatures.

  • Brand

  • Chemical family

    Organic peroxide
  • CAS number

  • Physical form

  • Regional availability

    Latin America
  • Chemical name

    1,1-Di(tert-butylperoxy) cyclohexane, 50% in isoparrafin
  • Molecular drawing

    Organic peroxide
  • Applications

    Trigonox® 22-CL50 is a 50% formulation of the perketale 1,1-Di(tert-butyl peroxy)cyclohexane in isododecane which is used for the curing of unsaturated polyester resins at elevated temperatures. Trigonox® 22-CL50 is preferred for the curing of UP resin based Hot Press Molding formulations (SMC, DMC, BMC etc.) in the temperature range of 120-170°C. Trigonox® 22-CL50 can also be used in combination with high reactive peroxides like Perkadox 16 as kicker in formulations for pultrusion in the temperature range of 100-150°C. As Trigonox® 22-CL50 is a perketale, the stability of this peroxide in an UP resin is hardly influenced by the presence of metal accelerators, pigments or fillers. Trigonox® 22-CL50 is therefore very suitable for pigmented and non-pigmented Hot Press Molding formulations where a long shelf life of the compound is required. Trigonox® 22-CL50 is restricted applicable for Low Shrink and Low Profile formulations in view of possible surface imperfections.

Market Segments

Thermoset composites

Detailed description

Trigonox® 22-CL50 is a peroxide formulation (50% active ingredient in isoparrafin) used for curing unsaturated polyester resins at elevated and high temperatures. Recommended when using carbon black in the formulation.


  • Curing agent


  • Hot press molding,
  • Pultrusion
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For more information about Trigonox 22-CL50, please contact our technical experts. We look forward to hearing from you.

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