Organic Peroxide · Room-Temperature Curing

MEKP – Methyl Ethyl Ketone Peroxide Series

CAS 1338-23-4 · Room-temperature initiator for unsaturated polyester resins

Five MEKP grades covering PE coatings, FRP hand layup, vacuum infusion, and high-end composite applications. Each grade is formulated for specific cure profiles — from fast-gel general FRP to low-exotherm yacht and carbon fiber work.

5

Grades Available

RT Cure

Room Temperature

FRP

Primary Application

COA

Batch-specific

MEKP Grade Selection

Choose the right grade for your application

GradePrimary ApplicationPositioningKey Feature
MEKP 288PE coatingsSpecialtyOptimized for PE paint systems
MEKP 388Translucent roofing, general FRPGeneral-purpose, high volumeStrong demand in Southeast Asia
MEKP M50FRP hand layup, craftsMid-range universalBalanced gel time and cure
MEKP 588Buttons, craftsEco-grade specialtyLow-odor, environmentally optimized
MEKP 688Carbon fiber, yacht, vacuum infusionPremium low-exothermControlled heat for large/thick parts

Applications

Room-temperature curing of unsaturated polyester resin systems

FRP / Fiberglass

  • Hand layup — boats, tanks, enclosures
  • Spray-up manufacturing
  • Filament winding
  • Translucent roofing panels (388)

Composites

  • Vacuum infusion (688)
  • Carbon fiber parts (688)
  • Yacht hulls and marine components
  • Wind energy small components

Coatings & Specialty

  • PE furniture coatings (288)
  • Gel coat curing
  • Artificial stone and solid surface
  • Buttons, crafts, decorative items (588)

Packaging & Shipping

Packaging

  • Standard drums — contact for size options
  • Hazardous goods compliant labeling
  • Dangerous goods packaging certificate available

Storage

  • Cool, dry, ventilated area
  • Away from heat, sparks, and direct sunlight
  • Separate from reducers and accelerators

Transport

  • Hazard Class: 5.2 (Organic Peroxide)
  • CAS: 1338-23-4
  • SDS provided with every shipment

Export Terms

  • FOB: Shanghai / other Chinese main ports
  • CIF: Available on request
  • Payment: T/T, L/C for established accounts

FAQ

Which grade should I choose?

For general FRP: MEKP 388 or M50. For PE coatings: MEKP 288. For yacht/carbon fiber/vacuum infusion: MEKP 688. Contact us with your application for a specific recommendation.

Do you provide SDS and COA?

Yes. GHS-compliant SDS and batch-specific COA are provided with every shipment.

What accelerator is used with MEKP?

Typically cobalt octoate (cobalt naphthenate) as a promoter. We also supply matching cobalt accelerators. Dosage depends on gel time requirements.

Is MEKP 388 suitable for Southeast Asian markets?

Yes. MEKP 388 is our highest-volume grade with strong demand in Southeast Asia for translucent roofing panels and general FRP applications.

Request Sample or Quotation

Tell us your application, resin system, and required volume. We'll recommend the right MEKP grade and provide pricing.

Product

MEKP Series
CAS 1338-23-4

Response Time

Within 24 hours on business days

We respond within 24 hours. Your information is kept strictly confidential.