Description
Norox MEKP-925, 7011 — BOLTON SKU 57873.
About the Norox MEKP-925, 7011
The Norox MEKP-925 7011 listing covers Norox® MEKP-925, a methyl ethyl ketone peroxide (MEKP) cure initiator manufactured by United Initiators for room-temperature curing of unsaturated polyester and vinyl ester resins. The product is a clear, colourless liquid solution of MEKP in a plasticiser carrier. Its comparatively high MEKP dimer content gives strong performance in vinyl ester resins; in most unsaturated polyesters it produces longer gel and gel-to-cure times than standard Norox MEKP-9, with a higher peak exotherm, particularly in thick laminate sections. Published properties include approximately 9% active oxygen content, a specific gravity of 1.10 at 25°C and a flash point of at least 170°F, with recommended storage below 27°C. Typical addition levels for MEKP initiators are on the order of 1-2% of resin weight, per resin-supplier guidance. Handle as an organic peroxide with the manufacturer’s SDS precautions.
Key specifications
| Product | Norox® MEKP-925 (United Initiators) |
|---|---|
| Chemistry | Methyl ethyl ketone peroxide solution |
| Function | Cure initiator (catalyst) for UP and VE resins |
| Appearance | Clear, colourless liquid |
| Active oxygen | Approx. 9% max |
| Specific gravity | 1.10 at 25°C |
| Storage | Below 27°C (80°F) |
Typical applications
MEKP-925 is used in composite fabrication — laminating, infusion and gelcoat work with polyester and vinyl ester systems — across marine, industrial and repair applications. Its cure profile is particularly relevant where vinyl ester resins or thicker sections are being processed and a controlled gel time with strong through-cure is needed.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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