MEKP 925 Hardener
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MEKP 925 Catalyst is a premium-grade methyl ethyl ketone peroxide catalyst engineered to reliably cure polyester and vinyl ester resins. Designed for professional composite manufacturing, fiberglass fabrication, marine applications, and general-purpose laminating, MEKP 925 delivers consistent performance, excellent cure efficiency, and dependable results in demanding production environments.
Formulated as a cure initiator for both unsaturated polyester and vinyl ester resins, including gelcoats, MEKP 925 has a high MEKP dimer content that delivers excellent performance in most vinyl ester resins and also performs well with general-purpose ortho and isophthalic resins. With most unsaturated polyesters, it gives longer gel and gel-to-cure times than Norox® MEKP-9, but with a higher peak exotherm, particularly in thick sections.
MEKP-925 is formulated for consistent, controlled curing, making it a practical choice for fiberglass work, repairs, molds, and gelcoat projects. For smaller projects, the handy 1 oz. bottle makes it easy to measure the amount you need without having to purchase a larger container (1 oz. only).
Key Features
- Liquid MEKP catalyst for unsaturated polyester and vinyl ester resins, including gelcoats
- High MEKP dimer content for excellent performance in most vinyl ester resins
- Performs well with general-purpose ortho and isophthalic resins
- Consistent gel and cure times
- Suitable for fiberglass work, repairs, molds, and gelcoat projects
- Packaged in a squeeze bottle
- Easy to measure – helps maintain consistent resin-to-catalyst ratios (1 oz.)
- Keep container sealed; avoid open flames and temperatures above 90°F (per 1 oz. label)
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