Organic Peroxides | MEKP Solutions

MEKP Solutions for
Industrial Resin Applications

High-performance MEKP initiator solutions for curing unsaturated polyester resins and selected vinyl ester systems in FRP, composites, laminates, and related industrial applications.
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Product Overview

Perovion® MEKP

Perovion® 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. It 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

Product Variants & Specifications

Multiple MEKP Formulations for Different Processing Needs

Perovion® 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.

Selection Guide

Not Sure Which Product Direction Fits Your Process?

Here is a simple way to start the conversation based on your application type.
General polyester resin curing

For standard resin processing, laminating workflows, and routine industrial use.

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Fast gel and quicker initial curing

For buyers who need shorter gel time and faster initial curing speed than standard products.

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Low moisture or vinyl resin-related process

For applications requiring lower water content, no polar compounds, and more controlled gel characteristics.

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Long gel time or vinyl resin-related process

For processes requiring longer gel time or compatibility with selected vinyl resin applications.

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Phthalate-free medium activity systems

For buyers looking for phthalate-free curing systems with medium activity and balanced performance.

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Other Special Process Options

For applications requiring more specialized curing behavior, process-oriented performance, or compatibility with selected resin systems.

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Applications

Applications We Support

Use this section to quickly check whether your application fits one of the common MEKP-related use cases below.
Gel Coats

For gel coat production and related polyester processing environments.

Laminating Resins

For composite laminating workflows and everyday resin processing.

FRP / GRP Manufacturing

For fiberglass-reinforced plastic and glass-reinforced plastic production.

Marine & Composite Fabrication

For polyester-based systems used in marine and composite manufacturing.

Casting Systems

For selected casting and molded resin systems, subject to process review.

Selected Vinyl Ester Processes

For selected peroxide-related vinyl ester curing workflows.

Applications

Frequently Asked Questions

Tell us what you are making, how you plan to use the product, and what commercial information you need. We will help you move to the right next step.

Different INX MEKP grades are designed for different curing priorities. Standard grades are suitable for general resin processing and laminating applications, while faster grades are better for users who want shorter gel time and quicker initial cure. Low-moisture or special-process grades are more suitable for vinyl resin-related systems, controlled gel requirements, or selected production conditions.

MEKP is widely used as a curing catalyst for unsaturated polyester resin systems in FRP, composite parts, laminates, castings, and selected resin-based industrial applications. It is commonly used in fiberglass processing, marine composites, construction components, and polyester-based fillers or putties.
Temperature has a direct impact on gel time and curing speed. In lower-temperature environments, the curing reaction usually becomes slower, which may affect production efficiency and early hardness development. In warmer conditions, the system may respond faster, so grade selection and process adjustment should be matched to actual operating conditions.
Standard grades are general-purpose options for routine resin curing and laminating applications. Low-moisture grades are more suitable for processes that require lower water content, no polar compounds, or more controlled gel characteristics. Phthalate-free grades are designed for buyers looking for no-DMP formulations while maintaining medium activity and balanced curing behavior.
Before selecting an MEKP grade, buyers usually need to confirm their resin type, process type, target gel time, workshop temperature, and whether they have special requirements such as lower moisture, controlled exotherm, faster curing, or phthalate-free formulation. This helps narrow down the most suitable product direction more efficiently.
Looking for the right MEKP option for your process?
Share your application, packaging preference, and target volume. We will help you identify the most relevant product direction and documentation pathway.

Have a question about our products or operations?
Share a few details and our team will follow up accordingly.

Innovexar operates with a U.S.-headquartered structure and a manufacturing base in China. Our global setup supports efficient coordination, quality-driven operations, and responsive engagement with customers worldwide.
MEKP Solutions for Industrial Resin Applications

Organic Peroxides | MEKP Solutions MEKP Solutions forIndustrial Resin Applications High-performance MEKP initiator solutions for curing unsaturated polyester resins and selected vinyl ester systems in FRP, composites, laminates, and related industrial applications. Request a Quote Product Overview Perovion® MEKP Perovion® MEKP is a peroxide mixture specially developed for the production and cure of thick laminates […]

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