Perkadox L-40 RPS

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Organic peroxide

Organic peroxide

Perkadox L-40 RPS is a special low-viscosity pumpable and sprayable peroxide formulation containing 40% BPO which disperses and dissolves very quickly in pure unsaturated polyester and acrylic resins.

  • Product name

    Perkadox L-40 RPS
  • Chemical family

    Organic peroxide
  • CAS number

    94-36-0, 78-40-0
  • Physical form

  • Regional availability

    Africa, Europe, India, Latin America, Middle East, North America
  • Chemical name

    Dibenzoyl peroxide
  • Molecular Weight

  • Applications

    Perkadox L-40 RPS is a pumpable, sprayable easy dispersing form of dibenzoyl peroxide for the curing of unsaturated polyester resins at ambient and elevated temperatures. At cure-temperatures up to 80°C, Perkadox L-40 RPS should be used in combination with an aromatic tertiary amine accelerator, above 80°C the use of an accelerator is not required. Perkadox L-40 RPS can be pumped through internal and external mix FRP spray equipment and poured or metered by volume, Perkadox L-40 RPS is easier to use and handle than conventional dibenzoyl peroxide pastes or dispersions. The low water content of Perkadox L-40 RPS allows for use in all FRP applications.

Market Segments

Thermoset composites

Detailed description

Perkadox L-40 RPS is a special peroxide formulation containing 40% benzoyl peroxide which disperses and dissolves very quickly in pure unsaturated polyester and acrylic resins. The product is specially developed for curing road-marking acrylic coatings and fits high-pressure machines presently used in road marking. The product carries the approval from leading spraying-machine equipment manufacturer in Germany. It has excellent storage stability. The fine particle size allows for fast dissolving.


  • Curing agent


  • Engineered Stone,
  • Acrylics,
  • Resin Transfer Molding,
  • Hand lay up and spray up