Cadox L-50a VR

Product Line Organic peroxides

Organic peroxide

Special purpose MEKP with VR for curing tooling Gel Coats & promoted unsaturated polyester resins at room temperature.

  • Product name

    Cadox L-50a VR
  • Brand

  • Chemical family

    Organic peroxide
  • CAS number

  • Physical form

  • Regional availability

    Latin America, North America
  • Chemical name

    Methyl ethyl ketone peroxide
  • Applications

    Cadox L-50a VR is a special purpose catalyst for the room temperature cure of promoted unsaturated polyester resins. CADOX L-50a VR has a low hydrogen peroxide content which provides improved curing of vinyl ester resins. Cadox L-50a VR also has a high MEKP dimer content which may provide reduced cure times in some resin systems.  Cadox L-50a VR offers all the advantages of a red MEKP, except red parts. The VR series of products includes a red indicator system that virtually disappears during cure. The red is there when you need it, but not in the finished product. Visualize hot & cold spots, schrinkage problems, mass effects, thermal effects of core materials and dead flow zones in applications like vacuum infusion. Key features are:

Market Segments

Thermoset composites

Detailed description

Special purpose catalyst for curing tooling gel coats and promoted unsaturated polyester resins. Low-hydrogen peroxide & high dimer content reduces gel-coat porosity and provides improved curing of vinylester resins.


  • Curing agent
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For more information about Cadox L-50a VR, please contact our technical experts. We look forward to hearing from you.

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