Elastomer Selection
- Common Name(s)
- Designation
- Composition
- General Properties
- General Chemical Resistance
- Resistant to:
- Attacked by:
- Neoprene
- CR
- Chloroprene
- Good Weathering Resistance. Flame retarding. Moderate resistance to petroleum based fluids.
- Moderate chemicals and acids, ozone, oils, fats, greases, many oils, and solvents.
- Strong oxidizing acids, esters, ketones, chlorinated, aromatic and nitro hydrocarbons.
- EPDM
- EPDM, EPM
- Ethylene-Propylene-diene; Ethylene-propylene
- Excellent ozone, cehemical, and aging resistance. Poor resistance to petroleum-based fluids.
- Animal and Vegetable oils, ozone, strong and oxidizing chemicals.
- Mineral oils and Solvents, aromatic hydrocarbons.
- Buna-N
- NBR
- Nitrile-butadiene
- Excellent 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.
- Silicone
- Q,Si
- Polysiloxane
- Excellent high and low temperature properties. Fair physical properties.
- Moderate oxidizing Chemicals, ozone, concentrated sodium hydroxide.
- Many solvents, oils, concentrated acids, dilute sodium hydroxide.
- SBR
- SBR
- Styrene-butadiene
- Good 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.
- Butyl
- IIR
- Isobutene-isoprene
- Very good weathering resistance. Excellent dialectic properties. Low permeability to air. Good physical properties. Poor resistance to petroleum-based fluids.
- Animal and vegetable fats, oils, greases, ozone, strong and oxidizing chemicals.
- Petroleum solvents, coal tar solvents, aromatic hydrocarbons.
- Natural,
Gum Rubber - NR
- Isoprene, natural
- Excellent 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.
- Isoprene, Polyisoprene
- IR
- Isoprene, synthetic
- Similar to natural rubber.
- Similar to natural rubber.
- Similar to natural rubber.
- Hypalon
- CSM
- Chloro-sulfonyl-polyethylene
- Excellent 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.
- Acrylic, Poly Acryiate
- ABR, ACM
- Acrylate-butadiene, copolymer of acrylic ester and acrylic haiide
- Excellent resistance to high temperature, oil and air, ozone, and weathering. Poor low temperature properties. Not recommended for water service
- Ozone, extreme pressure, lubricants, hot oils, petroleum solvents, animal and vegetable fats.
- Water alcohols, glycols, alkali, esters, aromatic and halogenated hydrocarbons, phenol.
- Urethane
- AU, EU
- Polyethylene-update, Poly (oxy-1,4, butylene) ether
- Good aging and excellent abrasion, tear, and solvent resistance. Poor high temperature properties.
- Ozone, hydrocarbons, moderate chemicals, fats, oils, greases.
- Concentrated acids, ketones, esters, chlorinated and nitro hydrocarbons.
- Viton1, Fluoro-elastomer
- FKM
- Hexaflouropropylene-vinylidene flouride
- 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.
- Butadiene rubber
- BR
- Polybutadiene
- Excellent abrasion resistance and low temperature properties. High resilience.
- Similar to SBR
- Similar to SBR
- Kalrez1
- AFMU
- Tetraflouroethylene.-
flouronitrosomethane-perflourobutyric acid - Excellent chemical resistance. Excellent high and low temperature properties.
- Hydrin, Herchlor
- CO
- Polychloromethyl oxirane
- Excellent oil and ozone resistance. Good flame resistance and low permeability to gases. Fair low temperature properties.
- Similar to nitrite with ozone resistance.
- Ketones, esters, aldehydes, chlorinated and nitro hydrocarbons.
- EGH, Hydrin, Herchlor
- ECO
- Ethylene Oxide and chloromethyl oxirane
- Good low temperature properties. Excellent oil and ozone resistance. Fair flame resistance. Low permeability to gases.
- Similar to nitrite with ozone resistance.
- Ketones, esters, aldehydes, chlorinated and nitro hydrocarbons.
- Fluoro-silicone
- Moderate or oxidizing chemicals, ozone, aromatic chlorinated solvents, bases.
- Brake fluids, hydrazine, ketones.
- AFLAS2
- TFE/P
- Copolymer Tetrafluroethylene and Propylene
- Excellent heat resistance. High electrical resistivity. Oil resistance.
- Strong acids, water, aminos, and caustics.
- Polar solvents and aromatic fuels.
#1 Registered trademarks of Dupont Performance Elastomers
#2 Registered trademarks of Asahi Glass Co.
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