These Material Selection Guides are intended for use as a general overview and comparison of the typical properties of various elastomer types. Please contact us for specific technical details prior to writing material specifications.
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General Purpose Elastomers
Butyl EPDM Natural SBR
ASTM D - 2000 Designation AA, BA BA, CA AA AA, BA
Max. Tensile 3000 2500 3500 3000
Max. Elongation 850 600 700 600
Compression Set Resistance Fair - Good Very good Good Fair - Good
Resiliance Fair Good Excellent Good
Tear/Chip Resistance Good Fair Excellent Fair
Abrasion Resistance Fair Good Excellent Excellent
Service temp. (°F) -60 to 225 -60 to 350 -60 to 175 -50 to 225
"Rooftop" Aging Excellent Excellent Poor Poor
Ozone Resistance Excellent Excellent Fair Fair
Oxidaton Resistance Excellent Excellent Fair Good
Solvent Resistance Aliphatic HC Poor Poor Poor Poor
Aromatic HC Poor Poor Poor Poor
Oxygenated HC Good Excellent Poor Poor
Lacquer Solvents Fair Fair Poor Poor
Acid Resistance Dilute Excellent Excellent Very good Good
Concentrated Very good Very good Fair Fair
Gasoline/Oil Resistance Poor Poor Poor Poor
Animal/Veg. Oil Resistance Excellent Fair Poor Poor
Adhesion to Metals Good Good Excellent Excellent
Fabrics Good Good Excellent Good
Noteworthy:
• Excellent gas impermeability/retention
• Excellent vibration damping/attenuation
• ozone and weather resistance
• Low swell in water & steam
• General purpose
• Excellent dynamic mechanical properties
• Good friction surface
• Low cost
• General purpose

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Oil Resistant Elastomers
Epichlorohydrin Hypalon® Neoprene® Nitrile Urethane
ASTM D - 2000 Designation CH, DK, DJ CE BC, BE BF, BG, BK BG
Max. Tensile 2500 3000 3000 3000 6000
Max. Elongation 350 500 600 600 750
Compression Set Resistance Good Fair Good Very good Good
Resiliance Good Fair Excellent Good Good
Tear/Chip Resistance Good Good Good Good Excellent
Abrasion Resistance Good Excellent Excellent Excellent Excellent
Service temp. (°F) -50 to 225 -70 to 225 -50 to 250 -40 to 250 -30 to 175
"Rooftop" Aging Good Excellent Good Poor Excellent
Ozone Resistance Excellent Excellent Good Fair Excellent
Oxidaton Resistance Good Excellent Excellent Fair Excellent
Solvent Resistance
 Aliphatic HC Good Good Good Excellent Good
Aromatic HC Good Fair Fair Good Poor
Oxygenated HC Poor Fair Fair Fair Poor
Lacquer Solvents Fair Poor Poor Poor Poor
Acid Resistance Dilute Good Excellent Excellent Good Fair
Concentrated Poor Excellent Fair Fair Poor
Gasoline/Oil Resistance Excellent Good Good Excellent Good
Animal/Veg. Oil Resistance Excellent Poor Good Good Excellent
Adhesion to Metals Good Excellent Excellent Excellent Very Good
Fabrics Good Good Excellent Good Good
Noteworthy:
• Oil Resistant
• Good low temperature performance
 • Similar to Neoprene® but with improved acid, and weathering resistance
• Excellent general purpose material
• Available sulphur free
• Oil/Gas resistance
• Available with excellent abrasion resistance and friction surface
• Oil resistance
• Superior wear
• Low friction surface available
• Excellent load bearing properties

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Specialty Elastomers
Silicone Flourosilicone Thiokol® Viton®
ASTM D - 2000 Designation FC, FE, GE FK BK HK
Max. Tensile 1700 1500 1200 2000
Max. Elongation 700 300 300 300
Compression Set Resistance Very Good Good Poor Good
Resiliance Good Excellent Fair Fair
Tear/Chip Resistance Poor Poor Poor Good
Abrasion Resistance Fair to Poor Poor Poor Good
Service temp. (°F) -150 to 600 -80 to 300 -65 to 160 -10 to 600
"Rooftop" Aging Excellent Excellent Good Excellent
Ozone Resistance Excellent Excellent Excellent Excellent
Oxidaton Resistance Excellent Excellent Good Excellent
Solvent Resistance
 Aliphatic HC Poor Excellent Excellent Excellent
Aromatic HC Poor Excellent Excellent Excellent
Oxygenated HC Poor Poor Fair Poor
Lacquer Solvents Poor Poor Good Poor
Acid Resistance Dilute Very Good Very Good Good Excellent
Concentrated Fair Fair Fair Good
Gasoline/Oil Resistance Poor Excellent Excellent Excellent
Animal/Veg. Oil Resistance Fair Excellent Poor Excellent
Adhesion to Metals Very Good Good Poor Good
Fabrics Very Good Good Fair Good
Noteworthy:
• Heat Resistance
• Excellent release characteristics "no-stick"
• Does not have heat resistance of silicone
 • Superior Oil resistance • Heat, Oil & Solvent Resistnace

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