Cyclonox LE-50

Organic peroxides

Organic peroxide

Standard general-purpose peroxide formulation for applications that require a more gradual cure in comparison with Butanox M-50.

  • Product name

    Cyclonox LE-50
  • Chemical family

    Organic peroxide
  • CAS number

  • Physical form

  • Regional availability

    Africa, Europe, India, Middle East
  • Chemical name

    Cyclohexanone peroxide
  • Applications

    Cyclonox LE-50 is a general purpose cyclohexanone peroxide for the curing of unsaturated polyester resins in the presence of a cobalt accelerator at room and elevated temperatures. The curing system Cyclonox LE-50/cobalt accelerator is particularly suitable for the curing of lacquers, spray putties and in hand lay-up and spray-up applications. Moreover the manufacture of light resistant parts may be possible contrary to the curing system benzoyl peroxide/amine accelerator.

Market Segments

Thermoset composites

Detailed description

Standard general-purpose peroxide formulation with a more gradual cure. Very suitable for lacquers, spray bodyfillers and applications where Butanox M‑50 cures too fast, mainly advised for ISO and ISO/NPG resins.


  • Curing agent


  • Body and Spray Fillers,
  • Buttons,
  • Hand lay up and spray up


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For more information about Cyclonox LE-50, please contact our technical experts. We look forward to hearing from you.