Material Selection

Material Selection

Material Selection Guide


Use With

Do Not Use With


Nitrile (BUNA- N)
Duro: 70 Standard Temperature: -35oF to +250oF
Air, Water, Oils, Fuels, Gasoline, Engine Coolant, LPG, Hydraulic Actuator Seals, Hydraulic Pump Seals, Water Pump Seals, Carburetor Seals Transmission SealsAcetone, Lube Oil, Auto/Aircraft, Brake, Fluids, Automatic Transmissions, Military Hydraulic SystemsGood wear resistance Good compression set resistance, Good short-term resilience, Good permeation resistance
Neoprene®/ (Chloroprene)
Duro: 70 Standard Temperature: -40oF to +225oF
Alcohol, Engine Coolant, Vegetable Oil, Animal Fats, Ammonia RefrigerantsPetroleum Oils & Fuels, Dilute Acids, Toluene, AcetoneGood resistance to flexing, tear, sunlight & weathering
EPDM / EPM (Ethylene Propylene)
Duro: 70 Standard Temperature: -65oF to +250oF
Water, Alcohol, Acetone, Steam, Brake Fluids, Some Acids and Base KetonesPetroleum Oils & Fuels, TolueneGood heat resistance, Resistance to sunlight & weathering, Poor resistance to Petroleum Oils & fuels
Silicone (VMQ)
Duro: 70 Standard Temperature: -65oF to +500oF
Dry heat, Alcohol, Vegetable Oils, Oxygen, Sunlight, Ozone, Weathering Odorless & Non-ToxicPetroleum Oils & Fuels, Acids, Silicone Oils, Brake FluidsBroad temperature range, less favourable tensile, tear & abrasion resistance
Hypalon® (CSM)
Duro: 70 Standard Temperature: -40oF to +200oF
Animal Fats, Vegetable Oils, Engine Coolant, Freon 12, Freon 22, Refrigeration OilsPetroleum Fuels Acetone, Ethyl Acetate, TrichloroethaneExceptionally resistant to sunlight, ozone and weathering. For most applications neoprene does an equal job at a lower cost
Polyacrylate (ACM)
Duro: 70 Standard Temperature: -20oF to +350oF
Automatic Transmission Fluid, Power steering fluidWater, Toluene, Engine Coolant, AcetoneAutomatic transmission seals meets many automotive specifications
Hydrogenated Nitrile (HNBR)
Duro: 70 Standard Temperature: -40oF to +325oF
Engine Coolant, Oxygen/ Ozone, Steering Fluid, Sour Crude, RefrigerantsAlcohol, Containing FuelsBetter high temperature and compression set resistance than standard Nitrile, Resists chemicals, amines, hydrogen sulfide and ozone that typically attack standard Nitrile compound
Viton® (Fluorocarbon)
Duro: 75 Standard Temperature: -20oF to +400oF
Vacuum, Moist Acids, and Chemicals, Silicone Oils, Petroleum Oils, Di-Easter Lubricants, Halogenated HydrocarbonsAcetone, Skydrol, Ketones, Amines, Ethyl Acetate, Hot Water & SteamExcellent high temperature capability. Can withstand brief intermittent Exposure to 600o. Low compression set, Good resistance to a wide variety of chemicals
Fluorosilicone (FVMQ)
Duro: 70 Standard Temperature: -80oF to +350oF
Petroleum Oils, Jet Fuel, Gasoline, Alcohol, Dry HeatAcetone, Ethyl Acetate, some acids, aminesSlightly narrower temperature range than silicone rubber, but with excellent resistance to a wider variety of fluids
Teflon® (P.T.F.E.)
Temperature: -250oF to +450oF
Chemical Resistance,
Low coefficient of friction
Molten alkaline metalsTeflon is impervious to virtually all fluids and gases
Polyurethane (PU)
Duro: 70 to 90 Standard Temperature: -65oF to + 200oF
Drive Belts,
Some Petroleum Oils, Oxygen/Ozone Chlorinated Solvents
Ketones Acids WaterExcellent abrasion and extrusion resistance. Poor compression set and chemical resistance.