MEKP Catalyst - Methyl Ethyl Ketone Peroxide Hardener for Polyester & Vinyl Ester Resins
Description
MEKP (Methyl Ethyl Ketone Peroxide) is a high-purity liquid catalyst specifically formulated for the room-temperature curing of unsaturated polyester, vinyl ester, and gelcoat resin systems. As a critical 'hardener' in the composite industry, this MEKP solution provides a reliable, controlled exothermic reaction, transforming liquid resin into a durable, solid polymer.
Whether you are laminating fiberglass boat hulls, casting industrial parts, or working on DIY repair projects, our MEKP ensures a consistent cure rate without compromising the structural integrity of your final product.
Key Features & Benefits
Optimized Curing Control: Engineered to provide a predictable 'pot life' (working time) and a thorough through-cure, minimizing the risk of 'green' or tacky finishes.
Versatile Compatibility: Fully compatible with GP (General Purpose) resins, Isophthalic resins, Orthophthalic resins, and Vinyl Ester systems.
High Active Oxygen Content: Maintained at standard industrial levels (approx. 8.8% - 9.1%) to ensure powerful initiation even at lower ambient temperatures.
Clear, Low-Viscosity Liquid: Easily mixes into resins and gelcoats without causing discoloration or streakiness in clear-casting applications.
Specifications
| Chemical Name | Methyl Ethyl Ketone Peroxide (MEKP) |
|---|---|
| Flash Point | > 80°C |
| Appearance | Clear, Colorless Liquid |
| Thinner | 50 |
| Talcum powder | 15 |
| Surface Mat | 25 |


