Elastomer Properties Chart

Physical Properties Natural Rubber NRStyrene Butadiene SBRNeoprene CREthylene Propylene RPDMNitrile Butadiene NBRUrethaneFluro CarbonsSiliconeButylEpichio-Rohydrin Eco
Polymer Spec. Gravity
0.930.931.230.8811.051.4-1.9,950.91.27-1.36
Durometer Range
30-10030-10015-9530-9030-10020-10065-9015-8030-10035-90
Tensile Strength, PSI
4000+3000300025003000To 80002000+1400+2000+500-3000
Elongation, %
To 700500To 800To 500To 700To 650To 300To 700600To 800
Tear Resistance
ExcelsGoodGoodFairGoodExcelsFairGoodFairGood
Weather Resistance
FairFairExcelsExcelsFairExcelsExcelsExcelsExcelsExcels
Ozone Resistance
PoorPoorExcelsExcelsPoorExcelsExcelsExcelsExcelsExcels
Water Resistance
ExcelsExcelsGoodExcelsExcelsFairGoodGoodExcelsExcels
Oil & Gasoline Resistance
PoorPoorGoodPoorExcelsExcelsExcelsPoorPoorExcels
Solvent Resistance:
Aliphatic Hydrocarbons
PoorPoorGoodPoorExcelsExcelsExcelsPoorPoorExcels
Solvent Resistance: Aromatic Hydrocarbons
PoorPoorPoorFairGoodFairExcelsPoorPoorGood
Brittle Point oF
-80-80-50-80-65-60-60-180-80-62
Stiffening Point oF (avg)
-40-35-10-35-10-20-15-150-25-40
Compression Set
GoodGoodFairFairGoodExcelsGoodExcelsFairExcels
Temperature
Resistance
To 212 oF
To 350 oF
To 450oF


Fair
Poor
Poor


Good
Poor
Poor


Good
Poor
Poor


Excels
Good
Poor


Good
Poor
Poor


Good
Poor
Poor


Excels
Excels
Excels


Excels
Excels
Excels


Excels
Good
Poor


Excels
Fair
Poor
Gas Impermeability
GoodFairGoodGoodGoodGoodExcelsFairExcelsExcels
Abrasion Resistance
ExcelsExcelsGoodGoodGoodExcelsFairFairExcelsExcels
Flex Resistance
ExcelsGoodGoodGoodGoodGoodGoodExcelsGoodExcels