Materials

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Use the table below to find information about common materials. You can filter the table by using the drop downs and search the table contents with the search box. You can also click the button below to download a PDF of this page.

NameDesignationCompositionTemp Range (F°)PropertiesResistant ToAttacked By
Buna-N (Nitrile)NBRNitrile-butadiene-30 to 250Excellent resistance to petroleum-based fluids. Good physical properties.Many hydrocarbons, fats, oils, greases, hydraulic fluids, chemicals.Ozone (except PVC blends), ketones, esters, aldehydes, chlorinated and nitro hydrocarbons.
ButylIIRIsobutene-isoprene-20 to 250Very good weather resistance. Excellent dielectric properties. Low permeability to air. Good physical properties. Animal and vegetable fats, oils, greases, ozone, strong and oxidizing chemicals.Petroleum, solvents, coal tar solvents, aromatic hydrocarbons.
Carboxylated NitrileXNBRCarboxylated Nitrile-20 to 250Excellent abrasion and tear resistance. Fair ozone and steam resistance. Poor to fair sunlight and outdoors. Good to excellent oil resistance.Many hydrocarbons, fats, oils, greases, hydraulic fluids, chemicals.Ozone (except PVC blends), ketones, esters, aldehydes, chlorinated and nitro hydrocarbons.
EPDMEPDMN, EPMEthylene-propylene-diene
Ethylene-propylene
-40 to 300Excellent ozone, chemical, and aging resistance. Poor resistance to petroleum-based fluids.Animal and vegetable oils, ozone, strong and oxidizing chemicals.Mineral oils and solvents, aromatic hydrocarbons.
Fluoro-siliconeFsiFluorocarbon-60 to 350Offers superior heat resistance, resistant to cold, oils and solvents of fluorinated rubber. Good for special applications where general resistance to oxidizing chemicals, aromatic and chlorinated solvent bases are required. Narrower telp range than silicone but better fluid resistance.Moderate or oxidizing chemicals, ozone, aromatic chlorinated solvents, bases.Brake fluids, hydrazine, ketones.
Hydrogenated NitrileHNBRHydrogenated Acrylonitrile-butadiene rubber-22 to 300Excellent heat and oil resistance, improved fuel and ozone resistance (approx 5x) over Nitrile. Good abrasion resistance. Decreased elasticity at low temperatures with hydrogenation over standard nitrile.Many hydrocarbons, transmission fluids, refrigerants, diluted acids, hydraulic fluids, silicone oils, vegetable and animal fats and oils, water and steam.Chlorinated hydrocarbons, ketones, strong acids.
HypalonCSMChloro-sulfonyl-polyethylene-60 to 320Excellent ozone, weathering, and acid resistance. Good abrasion and heat resistance. Fair resistance to petroleum-based fluids.Similar to Neoprene with improved acid resistance.Concentrated oxidizing acids, esters, ketones, chlorinated, aromatic, and nitro hydrocarbons.
Natural, Gum RubberNRIsoprene, natural-60 to 220Excellent physical properties including abrasion and low temperature resistance. Poor resistance to petroleum-based fluids.Most moderate chemicals, wet or dry, organic acids, alcohols, ketones, aldehydes.Ozone, strong acids, fats, oils, greases, most hydrocarbons.
NeopreneCRChloroprene-30 to 212Good weathering resistance, flame retarding, moderate resistance to petroleum-based fluidsModerate chemicals and acids, ozone, oils, fats, greases, solventsStrong oxidizing acids, esters, ketones, chlorinated, aromatic, and nitro hydrocarbons
SBR (Red Rubber)SBRStyrene-butadiene-20 to 212Good physical properties and abrasion resistance. Poor resistance to petroleum-based fluids.Most moderate chemicals, wet or dry, organic acids, alcohols, ketones, aldehydes.Ozone, strong acids, fats, oils, greases, most hydrocarbons.
SiliconeQ, SiPolysiloxane-80 to 420Excellent high and low temperature properties. Fair physical properties.Moderate or oxidizing chemicals, ozone, concentrated sodium hydroxide.Many solvents, oils, concentrated acids, dilute sodium hydroxide.
UrethaneAU, EUPolyethelene-apdate, Poly (oxy-1, 4, butylene) ether-40 to 175Good aging and excellent abrasion, tear, and solvent resistance. Poor high temperature properties.Ozone, hydrocarbons, moderate chemicals, fats, oils, greasesConcentrated acids, ketones, esters, chlorinated and nitro hydrocarbons
Viton (tm), FluoroelastomerFPMHexafluoropropylene-vinylidene fluoride-10 to 400Excellent oil & air resistance both at high and low temperatures. Very good chemical resistance.All aliphatic, aromatic and halogenated hydrocarbons, acids, animal oils, vegetable oilsKetones, low molecular weight esters and nitro containing compounds.

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