PYROGARD 42, 43, 53, and 55 are all names for the same chemical, which is a blend of polyamine and polyamide-epichlorohydrin copolymers. This chemical is most commonly used in the production of rubber and plastic seals, as well as other rubber and plastic products.
When exposed to PYROGARD 42, 43, 53, and 55, rubber seals can suffer from a number of issues. This is due to the chemical’s ability to break down the rubber’s chemical bonds, leading to reduced elasticity and strength. Additionally, the chemical can corrode the rubber, leading to cracks and other defects that can cause the rubber seal to fail. Furthermore, the chemical can cause the rubber to become brittle, which can lead to further issues with the seal. Additionally, the chemical can cause the rubber to swell, resulting in increased resistance and a potential failure of the seal.
EPDM o-rings, or ethylene propylene o-rings, are a family of synthetic elastomers with lower cost steam and chemical resistance, particularly for applications involving solvents, acids and other mild chemicals. Marco Rubber has the world’s largest inventory network of EPDM o-rings and made on demand custom manufacturing often without tooling fees, so the EPDM o-rings you need are always available. Whether it’s for water systems, braking systems, medical, pharmaceutical, food or dairy use, you can count on Marco Rubber to deliver your o-rings fast and efficiently.
View some of our other material compatibility ratings with PYROGARD 42, 43, 53 & 55. 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