canyon components logo

SULFUR DIOXIDE Chemical compatibility with O-rings, rubbers, & plastics

Sulfur dioxide is a colorless gas with a pungent odor, having the chemical formula SO2. It is used in various industrial and chemical applications primarily as a preservative, bleaching agent, and intermediate in the production of sulfuric acid. In the food industry, sulfur dioxide is employed as a preservative for dried fruits, wines, and other food products, preventing spoilage and maintaining freshness. It is also used in the pulp and paper industry for bleaching wood pulp and in water treatment processes for dechlorination. Proper handling and storage of sulfur dioxide are essential to prevent accidents and ensure safety, as it is highly toxic and can cause respiratory irritation and other health hazards. Safety measures, including the use of appropriate protective equipment and adherence to handling protocols, are crucial when working with sulfur dioxide. Its versatility and effectiveness in various applications make sulfur dioxide a valuable chemical in numerous industries, although its use requires careful control to prevent hazards.

Need SULFUR DIOXIDE resistant plastics, O-rings, rubbers, and seals? Get in touch now!


Canyon Components strives to meet all customer service requests. If you need something that isn't listed below, feel free to contact a Canyon Components product and application consultant and let our knowledgeable staff help you design the perfect part for your needs.

Paint covered o-ring
MaterialPerformanceGet a quote
FFKM (CanRez™, Kalrez®, Chemraz®)Excellent: <15% SwellingGet a quote
FKM ETP (Viton® Extreme)Acceptable: <15-25% SwellingGet a quote
FKM (Viton®)Poor: 25-40% SwellingGet a quote
NBR (Buna-N, Nitrile)Not Recommended: Over 40% SwellingGet a quote
HNBR (Hydrogenated Nitrile)--- Insufficient Testing DataGet a quote
EPDM (Ethylene Propylene)Excellent: <15% SwellingGet a quote
Aflas® (TFE/P, FEPM)Acceptable: <15-25% SwellingGet a quote
Silicone (VMQ, PVMQ)Acceptable: <15-25% SwellingGet a quote
Fluorosilicone (FVMQ)Acceptable: <15-25% SwellingGet a quote
Polyurethane (PU, AU)--- Insufficient Testing DataGet a quote
Teflon® (PTFE)--- Insufficient Testing DataGet a quote
Neoprene (Chloroprene)--- Insufficient Testing DataGet a quote
SBR (Styrene-Butadiene)--- Insufficient Testing DataGet a quote
ACM (Acrylic Rubber)--- Insufficient Testing DataGet a quote
Butyl (IIR, Isobutylene Isoprene)--- Insufficient Testing DataGet a quote
Butadiene Rubber (BR)--- Insufficient Testing DataGet a quote
Isoprene Rubber (Polyisoprene)--- Insufficient Testing DataGet a quote
Natural Rubber (NR)--- Insufficient Testing DataGet a quote
Hypalon (CSPE)--- Insufficient Testing DataGet a quote
Metal Piston

Get a quote now!

Groove Design References

Learn More

Coatings, Packaging, & Other Services

Learn More

Custom Parts & Custom O-rings

Learn More