• Perodox® MEKP - Methyl Ethyl Ketone Peroxide

    High-performance organic peroxide catalyst for curing unsaturated polyester resins in FRP, composites, and laminates

  • Product Overview

    Perodox® MEKP is a peroxide mixture specially developed for the production and cure of thick laminates and applications requiring controlled exotherm.

    Methyl Ethyl Ketone Peroxide (MEKP)

    MEKP is a methyl ethyl ketone peroxide formulation for the curing of unsaturated polyester resins in the presence of a cobalt accelerator at room and elevated temperatures. MEKP is suitable for the cure of both thin and thick sections in one particular product.

    CAS No.:1338-23-4

    TSCA Status：listed on inventory

    EINECS/ELINCS No.:215-661-2

    Density, 20 °C :1.130g/cm³

    Viscosity, 20 °C :20 mPa.s

  • Product Variants & Specifications

    Perodox® offers multiple MEKP formulations tailored for specific applications and performance requirements

    Standard

    Universal standard product, moderate activity, low moisture content, and free of polar compounds

    High Activity

    Short gel time and high activity for faster gel and initial curing speed compared to standard products

    Low Moisture

    Longer gel time, low water content, no polar compounds; especially suitable for adhesive clothing and vinyl resin

    Eco-Friendly

    Does not contain dimethyl phthalate (DMP), environmentally friendly and green type, moderate activity

    Economic

    General economic products, especially suitable for laminated casting resin

    Putty Curing

    Gel shape formulation specifically designed for putty curing applications

  • Active Oxygen Content

    The active oxygen content of our MEKP series products can be adjusted according to customer needs,

    typically ranging from 8.9% to 9.9%. Contact our technical team for customized formulations.

  • Applications

    Perodox® MEKP is widely used in various industries for resin curing and composite manufacturing

    Fiberglass Reinforced Plastics (FRP)

    Catalyst for manufacturing FRP products including pipes, tanks, and automotive components

    Wind Energy

    Curing agent for windmill rotor blades and other composite structures in renewable energy

    Marine Applications

    Used in boat building and marine composite structures requiring durable resin systems

    Construction

    Curing of polyester resins for construction panels, sanitary ware, and architectural elements

    Coatings & Putties

    Catalyst for polyester-based coatings, fillers, and repair putties

    Industrial Laminates

    Production of industrial laminates and composite materials with controlled curing characteristics

  • Safety & Handling

    Proper handling and storage procedures for Perodox® MEKP

    Thermal Stability

    Organic peroxides are thermally unstable substances which may undergo self-accelerating decomposition. The Self-Accelerating Decomposition Temperature (SADT) for MEKP is 60°C.

    Storage Conditions

    Store at temperatures ≤25°C, away from direct sunlight. When stored under recommended conditions, MEKP will remain within specifications for at least 3 months after delivery.

    Packaging & Transport

    20 kg corrugated box packaging. MEKP is classified as Organic peroxide type D; liquid, Division 5.2; UN 3105 for transportation.

    Decomposition Products

    Major decomposition products include carbon dioxide, water, acetic acid, formic acid, propionic acid, and methyl ethyl ketone.

  • Frequently Asked Questions

    Common questions about Perodox® MEKP and its applications

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