MEKP is a clear hardener/catalyst for the room temperature cure of unsaturated polyester and vinyl ester resins. It is also needed with all gel coats. It is typically used between 1.25% to 1.75% (1 2/3 ounce to 2 1/3 ounces per gallon).

Pure MEKP is shock sensitive. Commercial product is diluted with 40% dimethyl phthalate, cyclohexane peroxide, or diallyl phthalate to reduce sensitivity to shock.]

Jan 5, 2021 · ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Methyl Ethyl Ketone Peroxidase. See annual publication for most recent information. Lefaux, R.: Practical Toxicology of Plastics. Cleveland: CRC Press Inc., p. 145, 1968.

MEKP (Methyl Ethyl Ketone Peroxide) is a catalyst used in the composites industry for polyester and vinyl ester resins and gel coats. It reacts with resin to turn it from a liquid to a solid (cure it).

Jul 22, 2024 · Methyl ethyl ketone peroxide (mekp) is a liquid chemical compound from the family of ketone peroxides that it is used to initiate the polymerization of unsaturated polyester and vinylester resins at different curing temperatures.

METHYL ETHYL KETONE PEROXIDE is a strong oxidizing agent. May be ignited by heat, sparks or flame and undergoes self-accelerating decomposition. Explosive decomposition occurs at 230°F. Sensitive to sunlight. Ignition and/or explosion may occur if …

Methyl ethyl ketone peroxide (MEKP) is an organic peroxide with the formula [ (CH 3) (C 2 H 5)C (O 2 H)] 2 O 2. MEKP is a colorless oily liquid. It is widely used in vulcanization (crosslinking) of polymers. Quick Facts Names, Identifiers ...

Sep 30, 2017 · Methyl ethyl ketone peroxide (MEKP) is a mixture of isomers (monomer and dimer) and is marketed exclusively with various stabilizing agents that cannot be totally separated due to the explosive properties of the substance.

Butanox ® MEKP has a consistent high quality and guaranteed low water content and can be used across the entire range of applications and reactivities of commercially available UP and vinyl ester (VE) resins.

Commercial methyl ethyl ketone peroxide (MEKP) is a mixture of compounds and is a liquid usually supplied blended into dimethyl phthalate, the mixture containing about 60% peroxide. Its activity varies according to the composition of the mixture.