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INDOLE Chemical compatibility with O-rings, rubbers, & plastics

Indole is a colorless to pale yellow solid with a distinctive odor, used in various industrial and research applications. It is an important building block in organic synthesis, particularly in the production of pharmaceuticals, agrochemicals, and perfumes. Indole is also a natural compound found in many plants and is produced by certain bacteria. Despite its utility, indole can be toxic and poses health hazards if inhaled, ingested, or absorbed through the skin. Proper handling, storage, and safety measures, including the use of personal protective equipment, are essential to minimize risks and ensure safe usage in industrial and laboratory settings.

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

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