Methyl ethyl ketone peroxide (MEKP) is an organic peroxide compound with the molecular formula C5H10O2. It is a colorless, crystalline solid with a pungent odor and is used as an initiator in the polymerization of acrylics and unsaturated polyesters. MEKP is also used in some industrial processes, such as the manufacture of rubber and plastics, as a bleaching agent, and as a fuel additive.
When rubber is exposed to MEKP, the most common types of failure are discoloration, hardening, and cracking. Discoloration may occur due to oxidation and can result in a change in the material’s color, which can affect its overall appearance. Hardening occurs due to the reaction between the MEKP and the rubber, which can make the material more brittle and prone to cracking. Cracking can occur due to embrittlement, which is caused by the chemical reaction with the MEKP.
Markez ® high performance perfluoroelastomer O-Rings (FFKM) offer unmatched value for demanding sealing applications. Produced from nearly identical ingredients as higher priced brands, Markez ® compounds are used for high temperature o-rings and high pressure o-rings and chemical resistant o-rings that deliver similar performance to major FFKM brands, with temperature resistance up to 625oF, at a significantly lower cost. Our proprietary processing allow us to supply seals under an inch in size more efficiently. Introduced exclusively to existing customers over 15 years ago, we now have the experience and capacity to offer Markez ® high temperature o-rings and high pressure o-rings to the world.
View some of our other material compatibility ratings with METHYL ETHYL KETONE PEROXIDE. If you don't see what you're looking for or need more guidance, our team of experienced sealing design engineers can help select the best sealing products and material for your specific application.View Full Chemical Compatibility Guide