Caustic Soda, also known as Sodium Hydroxide, is a commonly used chemical compound found in a number of industries including soap making, paper production, and food processing. In terms of rubber, caustic soda can cause the rubber to become brittle and crack, reducing its effectiveness. Additionally, it can cause the rubber to swell, soften, and discolor, leading to premature failure.
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 CAUSTIC SODA. 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