Perovion MEKP-CHP L28R

Key Features

  • Peroxide blend based on MEKP and CHP for polyester and vinyl ester curing.
  • Vanishing red indicator system for process visibility during mixing and cure.
  • Red color disappears after cure, leaving the finished product colorless.
  • Suitable for ambient curing with metal accelerators.
  • Supports monitoring of initiator presence, mixing quality, and under-cured areas.

Typical Applications

Perovion MEKP-CHP L28R can be used in curing unsaturated polyester, vinyl ester, and acrylic thermosetting resin systems, including composite laminates and other thermoset applications where visual mixing control and clean cured appearance are required.

Technical Specifications

  • Chemical Type: Methyl Ethyl Ketone Peroxide and Cumyl Hydroperoxide solution
  • Appearance: Clear red liquid
  • Total Active Oxygen: 8.8–9.0%
  • Density at 20°C: 1.16 g/cm³
  • Viscosity at 20°C: 23 mPa·s

Thermal Stability

  • Organic peroxides are thermally unstable substances and must be handled with appropriate care.
  • SADT: 60°C

Storage Recommendations

  • Recommended maximum storage temperature: 25°C.
  • Store in a dry, well-ventilated area.
  • Keep away from heat, ignition sources, and direct sunlight.
  • Keep containers tightly closed.
  • Avoid contact with reducing agents, acids, alkalis, and heavy metal compounds.

Packaging & Transport

  • Standard Packaging: 30 L HDPE container
  • Net Weight: 30 kg
  • UN Number: UN 3105
  • Transport Class: Organic Peroxide Type D, Liquid

Safety & Handling

Perovion MEKP-CHP L28R should be handled in accordance with applicable safety procedures for organic peroxides.

Safety Data Sheet and destination-compliant labeling information should be reviewed before use and are available upon request.

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Perovion MEKP-CHP L28R
Perovion MEKP-CHP L28R is a special peroxide blend with a vanishing red indicator system, developed for curing unsaturated polyester and vinyl ester resins under ambient conditions in conjunction with a metal accelerator. The red indicator helps visualize product flow and mixing during processing, then disappears during cure so that the finished part remains colorless. This makes Perovion MEKP-CHP L28R suitable for composite applications requiring both process visibility and clean final appearance….