FITCO supplies O-Rings, cords and kits in all major elastomer families. Click any material with an orange border for full technical specifications and available products. Materials shown with a grey border are available on request — contact us for pricing and lead times.
-30°C to +100°C
NBR — Nitrile
Most widely used. Excellent oil, fuel and mineral oil resistance.
-20°C to +220°C
FKM — Viton®
Industry standard for high-temperature and aggressive chemical sealing.
-45°C to +120°C
EPDM
Best for steam, hot water and outdoor UV/ozone environments.
-10°C to +310°C
FFKM — Perfluoroelastomer
Near-universal chemical resistance. Highest-performing elastomer.
-30°C to +150°C
HNBR
Upgraded NBR with superior heat, ozone and sour-gas resistance.
-60°C to +200°C
Silicone VMQ
Widest temp range. Food-grade options. Excellent electrical properties.
-65°C to +175°C
Fluorosilicone FVMQ
Silicone flexibility combined with fuel and oil resistance.
-5°C to +200°C
AFLAS® TFE/P
Outstanding steam, amine and caustic resistance where FKM fails.
-20°C to +120°C
Neoprene CR
Flame retardant. Excellent ozone, UV and refrigerant resistance.
–200°C to +260°C
PTFE / PTFE Compounds
Chemically inert and non-stick. Used in back-up rings and encapsulated forms.
-65°C to +200°C
PVMQ — Phenyl Silicone
Enhanced silicone with superior low-temperature performance.
-25°C to +175°C
ACM — Polyacrylate
Excellent oil and heat resistance. Common in automotive transmission seals.
-35°C to +160°C
AEM — Ethylene Acrylate
Good oil, ozone and heat resistance. Widely used in automotive sealing.
-30°C to +100°C
AU — Polyurethane (Ester)
Very high mechanical strength and abrasion resistance.
-30°C to +90°C
EU — Polyurethane (Ether)
High strength polyurethane with excellent hydrolysis resistance.
-40°C to +100°C
SBR — Styrene Butadiene
General-purpose elastomer for non-oil applications.
-40°C to +120°C
IIR — Butyl Rubber
Excellent gas impermeability. Good steam and acid resistance.
-40°C to +130°C
ECO — Epichlorohydrin
Good oil and fuel resistance combined with low gas permeability.
-40°C to +120°C
BIIR — Bromobutyl
Improved butyl with better cure compatibility. Used in pharma stoppers.
-10°C to +327°C
Kalrez® FFKM
DuPont's highest-grade FFKM. Extreme temperature and chemical performance.