Material Reference The chart below is intended to help in the material selection stage of designing rubber parts / products. Rubber compounding is a very broad and technical field, since basic rubbers or elastomers are mixed with various chemicals and ingredients (and even with each other) to obtain desired physical properties. Min/Max Temp Common General Chemical Resistance (3) Designation Operating Name(s) (2) Composition Range (F) (5) General Properties(1) Resistant to: Attacked by: Good Weathering Moderate chemicals Strong oxidizing Resistance. Flame and acids, oils, fats, acids, esters, ketones, retarding. Moderate greases, many oils, chlorinated, aromatic Neoprene CR Chloroprene -30 F / 212 F resistance to and solvents. and nitro fluids. hydrocarbons. Excellent chemical, and Animal and Mineral oils and Ethylene-propylene- aging resistance. Poor vegetable oils, solvents, aromatic EPDM EPDM, EPM diene; -15 F / 356 F resistance to strong and hydrocarbons. fluids. oxidizing chemicals. Excellent resistance to Many Ketones, esters, petroleum-based fluids. hydrocarbons, fats, aldehydes, Buna-N NBR Nitrile-butadiene -40 F / 320 F Good physical oils, greases, chlorinated and nitro properties. hydraulic fluids, hydrocarbons. chemicals. Very good weathering Animal and Petroleum, solvents, resistance. Excellent vegetable fats, oils, coal tar solvents, dielectric properties. Low greases, strong aromatic Butyl IIR Isobutene-isoprene -60 F / 250 F permeability to air. Good and oxidizing hydrocarbons. physical properties. Poor chemicals. resistance to fluids. Excellent oil and air All aliphatic, Ketones, low resistance both at low aromatic and molecular weight Viton ® (4), Hexaflouropropylene- and high temperatures. halogenated esters and nitro FKM - 10 F / 356 F vinylidene fluoride Very good chemical hydrocarbons, containing resistance. acids, animal and compounds. vegetable oils.
Material Reference The chart below is intended to help in the material selection stage of designing rubber parts / products. Rubber compounding is a very broad and technical field, since basic rubbers or elastomers are mixed with various chemicals and ingredients (and even with each other) to obtain desired physical properties. Common Designation (2) Composition Min/Max Temp Operating Range (F) (5) General Properties(1) General Chemical Resistance (3) Name(s) Resistant to: Attacked by: Neoprene CR Chloroprene -30 F / 212 F Good Weathering Resistance. Flame retarding. Moderate resistance to fluids. Moderate chemicals and acids, oils, fats, greases, many oils, and solvents. Strong oxidizing acids, esters, ketones, chlorinated, aromatic and nitro hydrocarbons. EPDM EPDM, EPM Ethylene-propylene- diene; -15 F / 356 F Excellent chemical, and aging resistance. Poor resistance to fluids. Animal and vegetable oils, strong and oxidizing chemicals. Mineral oils and solvents, aromatic hydrocarbons. Buna-N NBR Nitrile-butadiene -40 F / 320 F Excellent resistance to petroleum-based fluids. Good physical properties. Many hydrocarbons, fats, oils, greases, hydraulic fluids, chemicals. Ketones, esters, aldehydes, chlorinated and nitro hydrocarbons. Butyl IIR Isobutene-isoprene -60 F / 250 F Very good weathering resistance. Excellent dielectric properties. Low permeability to air. Good physical properties. Poor resistance to fluids. Animal and vegetable fats, oils, greases, strong and oxidizing chemicals. Petroleum, solvents, coal tar solvents, aromatic hydrocarbons. Viton ® (4), FKM Hexaflouropropylene- vinylidene fluoride - 10 F / 356 F Excellent oil and air resistance both at low and high temperatures. Very good chemical resistance. All aliphatic, aromatic and halogenated hydrocarbons, acids, animal and vegetable oils. Ketones, low molecular weight esters and nitro containing compounds.
Gasket-Materials-Reference-Guide.docx