Cadox M-50a

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Organic peroxide

Preferred fast acting MEKP formulation for curing promoted unsaturated polyester resins.

  • Product name

    Cadox M-50a
  • Chemical family

    Organic peroxide
  • CAS number

  • Physical form

  • Regional availability

    Latin America, North America
  • Chemical name

    Methyl ethyl ketone peroxide
  • Applications

    Cadox M-50a is a multipurpose catalyst for the room temperature cure of promoted unsaturated polyester resins. Unpromoted unsaturated polyester resins can be heat-cured with Cadox M-50a in the temperature range of 100-127°C. Cadox M-50a VR also has a high MEKP monomer content which may provide faster gel times in some resin systems.  Additional end-use information is available in Nouryon’s brochures.

Market Segments

Thermoset composites

Detailed description

Highly reactive industry standard MEKP formulation for curing promoted unsaturated polyester matrices at room temperature.


  • Curing agent


  • Body and Spray Fillers,
  • Centrifugal casting,
  • Coatings,
  • Continuous Laminating,
  • Resin Transfer Molding,
  • Hand lay up and spray up