Cadox M-50a DVR

Product Line Organic peroxides

Cadox M-50a DVR is a special purpose catalyst (including a Red Indicator System) used for curing gel coats and promoted unsaturated polyester resins at room temperature. Low-hydrogen peroxide content reduces gel-coat porosity and provides improved curing of vinylester resins.

  • Brand

  • Chemical family

    Organic peroxide
  • CAS number

  • Physical form

  • Regional availability

    North America
  • Chemical name

    Methyl ethyl ketone peroxide, solution in 2,2,4-trimethyl-1,3-pentanediol diisobutanoate with vanishing red indicator
  • Molecular drawing

    Organic peroxide
  • Applications

    Cadox M-50a DVR is a special purpose catalyst for the room temperature cure of promoted unsaturated polyester resins. Unpromoted unsaturated polyester resins can be heat-cured with Cadox M-50a DVR in the temperature range of 100-127°C. Cadox M-50a DVR also has a high MEKP monomer content which may provide reduced cure times in some resin systems. Cadox M-50a DVR offers all the advantages of a red MEKP, except red parts. The DVR series of products includes a stronger VR 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.

Market Segments

Thermoset composites

Detailed description

MEKP formulation used for curing promoted unsaturated polyester resins at room temperature.


  • Curing agent
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