Sulfur dioxide, liquefied is also known as sulfur dioxide gas, liquid or sulfurous anhydride. It is commonly used for food preservation, in the production of sulfuric acid, and for water treatment.
When exposed to sulfur dioxide, liquefied rubber materials can become brittle due to the sulfur dioxide molecules binding with the polymers in the rubber. This can cause the rubber to lose its elasticity and become brittle over time. Additionally, sulfur dioxide can also cause the rubber to become discolored and swell as it reacts with the rubber’s stabilizers. Sulfur dioxide, liquefied can also corrode the rubber, which can reduce its lifespan.
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 SULFUR DIOXIDE, LIQUEFIED. 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