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EPDM Rubber vs. SBR Rubber

Both EPDM rubber and SBR rubber are thermoset elastomers (rubber). There are 10 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EPDM rubber and the bottom bar is SBR rubber.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.0
1.1
Elongation at Break, % 400
530
Glass Transition Temperature, °C -60
-30
Maximum Temperature: Mechanical, °C 160
100
Specific Heat Capacity, J/kg-K 2000
1880
Strength to Weight: Axial, points 3.6
3.4
Strength to Weight: Bending, points 12
11
Tensile Strength: Ultimate (UTS), MPa 13
14
Thermal Conductivity, W/m-K 0.2
0.17
Thermal Diffusivity, mm2/s 0.1
0.082