Trigonox 29-IN50

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Organic peroxide

Organic peroxide

Trigonox 29-IN50 is a special peroxide for smooth curing of unsaturated polyester resins at elevated and high temperatures.

  • Product name

    Trigonox 29-IN50
  • Chemical family

    Organic peroxide
  • CAS number

  • Physical form

  • Regional availability

    Africa, Europe, India, Middle East
  • Chemical name

    1,1-Di(tert-butyl peroxy) cyclohexane
  • Applications

    Trigonox 29-IN50 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 29-IN50 is preferred for the curing of UP resin based Hot Press Moulding formulations (SMC, DMC, BMC etc.) in the temperature range of 120-170°C. Trigonox 29-IN50 can also be used in combination with high reactive peroxides like Perkadox 16 or Trigonox HM as kicker in formulations for pultrusion in the temperature range of 100-150°C. As Trigonox 29-IN50 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 29-IN50 is therefore very suitable for pigmented and non-pigmented Hot Press Moulding formulations where a long shelf life of the compound is required. Trigonox 29-IN50 is restricted applicable for Low Shrink and Low Profile formulations in view of possible surface imperfections.

Market Segments

Thermoset composites

Detailed description

A 50% peroxide formulation used for curing unsaturated polyester resins at elevated and high temperatures. Recommended when using carbon black in the formulation.


  • Curing agent


  • Hot press molding,
  • Polystyrene