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METHYL TERTIARY BUTYL ETHER (MTBE) Chemical compatibility with O-rings, rubbers, & plastics

Methyl tert-butyl ether (MTBE) is a colorless, volatile liquid with the chemical formula C₅H₁₂O, used primarily as a fuel additive to enhance the octane rating of gasoline. It is also employed as a solvent and in the production of chemicals. MTBE improves the combustion efficiency of gasoline, reducing emissions of pollutants such as carbon monoxide. Despite its benefits, MTBE poses significant environmental and health risks if released into groundwater, as it can contaminate drinking water supplies. Proper handling, storage, and stringent safety measures are essential to minimize risks and ensure safe usage. Adequate ventilation and spill containment measures are crucial to prevent environmental contamination.

Need METHYL TERTIARY BUTYL ETHER (MTBE) 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)Poor: 25-40% SwellingGet a quote
HNBR (Hydrogenated Nitrile)Poor: 25-40% SwellingGet a quote
EPDM (Ethylene Propylene)Poor: 25-40% SwellingGet a quote
Aflas® (TFE/P, FEPM)Acceptable: <15-25% SwellingGet a quote
Silicone (VMQ, PVMQ)--- Insufficient Testing DataGet a quote
Fluorosilicone (FVMQ)--- Insufficient Testing DataGet a quote
Polyurethane (PU, AU)--- Insufficient Testing DataGet a quote
Teflon® (PTFE)--- Insufficient Testing DataGet a quote
Neoprene (Chloroprene)Poor: 25-40% SwellingGet 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

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