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

Malathion is a yellow to brown liquid organophosphate insecticide with the chemical formula C₁₀H₁₉O₆PS₂, used to control a wide range of pests in agricultural and residential settings. It is effective against insects such as mosquitoes, aphids, and lice. Malathion works by inhibiting the activity of the enzyme acetylcholinesterase, leading to the accumulation of acetylcholine and subsequent paralysis of the insect. Despite its effectiveness, malathion is toxic to humans and animals if ingested, inhaled, 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.

Need MALATHION 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)Acceptable: <15-25% SwellingGet a quote
HNBR (Hydrogenated Nitrile)Acceptable: <15-25% SwellingGet a quote
EPDM (Ethylene Propylene)Not Recommended: Over 40% SwellingGet a quote
Aflas® (TFE/P, FEPM)--- Insufficient Testing DataGet a quote
Silicone (VMQ, PVMQ)Not Recommended: Over 40% 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)Not Recommended: Over 40% SwellingGet a quote
ACM (Acrylic Rubber)--- Insufficient Testing DataGet 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)--- Insufficient Testing DataGet a quote
Metal Piston

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Groove Design References

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