Rubber Physical Properties

The following chart is provided as a guide only. Speak with us to help you choose the best product for your application.

Trade NameNATURAL RUBBERSBRNEOPRENENITRILE (BUNA-N)EPDMSILICONEVITON® 
Chemical NamePolyisopreneStyrene butadienePolychloropreneAcrylonitrile butadieneEthylene-propylene-diene terpolymerPolysiloxaneFluorinated hydrocarbon
SAE 1200 & ASTM D-2000 DesignationAAAA, BABC, BEBF, BG, BKBA, CAFC, FE, GEHK
ASTM D-1418 DesignationNRSBRCRNBREPDMVMQFKM
Minimum-55ºC-55ºC-40ºC-40ºC-55ºC-65ºC-40ºC
Temperature(-67ºF)(-67ºF)(-40ºF)(-40ºF)(-67ºF)(-85ºF)(-40ºF)
Maximum50ºC70ºC100ºC100ºC120ºC225ºC225ºC
Temperature(122ºF)(158ºF)(212ºF)(212ºF)(275ºF)(437ºF)(437ºF)
Usual Shelf5-Mar5-Mar10-May10-May10-MayUp toUp to
Lifeyearsyearsyearsyearsyears20 years20 years
AdvantagesOutstanding elasticityGood flexibility at low temperaturesVery good flexibility at low temperaturesGood resistance to flameVery good resistance to oils and fuelExcellent heat, ozone and sunlight resistanceFlexible at extreme temperaturesExcellent resistance to a wide variety of oils, fuel, solvents and acids at high temperatures
Very good resistance to weather, ozone and natural agingSuperior resistance to petroleum–based hydraulic fluidsVery good flexibility at low temperaturesLow compression setExcellent ultraviolet, weather and ozone resistanceVery good impermeability to gases and steam
Very good resistance to alkalis and acidsWide range of service temperaturesGood resistance to alkalis and acids, and solventsInert, odourless, tasteless and non?toxicVery good weather, ozone and sunlight resistance
Very good resistance to alkalis and acidsSuperior resistance to water and steam
LimitationsPoor heat, ozone and sunlight resistancePoor heat, ozone and sunlight resistancePoor to low resistance to aromatic solventsLow resistance to ozone, sunlight and natural agingPoor resistance to oils, fuel and to hydrocarbon solventsPoor abrasion and tear resistanceWill be severely attacked by certain solvents such as esters, ethers and acet
Very little resistance to oils, fuel and to hydrocarbon solventsVery little resistance to oils, fuel and to hydrocarbon solventsLimited capacities at low temperaturesPoor resistance to polar solventsPoor resistance to solvents, alkalis and acids

Physical Properties by Polymer

Physical PropertiesNATURAL RUBBERSBRNEOPRENENITRILE (BUNA-N)EPDMSILICONEVITON®
Tensile StrengthEF-GVGVGF-GVGVG
Ultimate ElongationVG-EGGGGVG-EF-G
Compression SetGGF-GGGVG-EVG-E
Heat ResistanceFF-GF-GGVG-EEE
Flame ResistancePPGPPF-GVG-E
ResilienceEF-GVGF-GGGF
Abrasion ResistanceEVG-EVG-EVG-EVG-EP-FF-G
Water ResistanceEVG-EGVG-EEVG-EG

Chemical Resistance by Polymer

Chemical ResistanceNATURAL RUBBERSBRNEOPRENENITRILE (BUNA-N)EPDMSILICONEVITON®
AcidsF-GF-GGGGFB
AlcoholGGVGF-GF-GGF-G
Animal and vegetable oilsFFGVGGGE
Oils and fuelPPF-GG-EPP-FE
Hydrocarbon solventsPPGEPP-FE
Oxygenated solventsGGP-FPVGFP
  • E = EXCELLENT
  • VG = VERY GOOD
  • G = GOOD
  • F = FAIR
  • P = POOR

This data and information are solely for guidance. Complete data on physical properties of products are available on request. Performance may vary within a rubber specific compound and batch.

Viton® is a registered trademark of Dupont.