Description

Methyl Isobutyl Ketone Peroxide is a high-purity organic peroxide widely used as a polymerization initiator and curing agent. Its primary value lies in its ability to efficiently initiate free-radical polymerization reactions at moderate temperatures, making it a critical component in the production of various polymers and composite materials. This product is essential for manufacturers in the unsaturated polyester resin (UPR), acrylic resin, and fiber-reinforced plastic (FRP) industries, where it ensures optimal curing rates and final product properties.

Application

• Primary initiator for the curing of unsaturated polyester resins (UPR) in fiberglass-reinforced plastics (FRP) for automotive parts, marine vessels, and construction panels.
• Cross-linking and curing agent for acrylic resins and coatings, providing enhanced durability and chemical resistance.
• Key component in gel coats and laminating resins to control gel time and ensure complete curing in composite manufacturing.
• Polymerization initiator for the synthesis of specific grades of polyvinyl chloride (PVC) and other vinyl polymers.
• Used in the production of acrylic sheet (PMMA) and cast acrylic resins.
• Adhesive formulation for structural bonding applications requiring room-temperature or heat-activated curing.

Basic Information

Product Name	Methyl Isobutyl Ketone Peroxide
CAS No.	37206-20-5
Molecular Formula	C12H24O4
Molecular Weight	232.32 g/mol
Synonyms	MIBK Peroxide; Methyl Isobutyl Ketone Peroxide Solution; 2,2'-(Dihydroperoxy)dipropyl diisobutyl ketone; Peroxide, bis(1-methyl-1-phenylethyl); Trigonox 44B; Luperox 500R; CHP 50; Cyclohexanone peroxide mixture; Ketone peroxide, methyl isobutyl; MEKP (commonly associated).
EINECS	253-426-1

Quality Control

Our Methyl Isobutyl Ketone Peroxide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure consistency, purity, and performance. Key parameters such as active oxygen content, peroxide concentration, and impurity profiles are verified. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Maintain storage temperature between 15°C and 25°C (59°F and 77°F). Keep away from reducing agents, strong acids, bases, and combustible materials. Due to its nature as a peroxide, do not store for prolonged periods and monitor container integrity regularly.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Active Oxygen)	9.0 - 11.0 %
Peroxide Content	Contact for details
Water Content	≤ 1.0 %
Specific Gravity (20°C)	0.95 - 1.05
Refractive Index (20°C)	1.430 - 1.450
Viscosity (25°C)	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.