Nitrile Rubber

Compounds of these polymers are the backbone of the O-Ring. They have excellent resistance to petroleum-based products, hydraulic fluids, most silicone fluids, and fuels.

Excellent resistance to tear and abrasion exhibiting high tensile strength. Nitrile rubber is the general term for acrylonitrile butadiene terpolymer.The acrylonitrile content of nitrile sealing compounds varies considerably (18 to 50%) and influences the physical properties of the finished material. The higher the acrylonitrile content, the better the resistance to oil and fuel. At the same time, elasticity and resistance to compression set is adversely affected. A compromise is often drawn and a medium acrylonitrile content selected.

Nitrile has good mechanical properties when compared with other elastomers and high wear resistance. Nitrile is not resistant to weathering and ozone. Good for hydraulic actuator seals, hydraulic pump seals, water pump seals, carburetor seals, transmission seals.

Resists aliphatic hydrocarbons (propane, butane, petroleum oil, mineral oil and grease, diesel fuel, fuel oils), vegetable and mineral oils and greases; HFA, HFB and HFC fluids; dilute acids, alkali and salt solutions at low temperatures; water (special compounds up to 212°F (100°C)).

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