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SBR Rubber vs. IR Rubber

Both SBR rubber and IR rubber are thermoset elastomers (rubber). There are 10 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

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

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.1
1.0
Elongation at Break, % 530
600
Glass Transition Temperature, °C -30
-70
Limiting Oxygen Index (LOI), % 18
19
Specific Heat Capacity, J/kg-K 1880
1550
Strength to Weight: Axial, points 3.4
5.6
Strength to Weight: Bending, points 11
17
Tensile Strength: Ultimate (UTS), MPa 14
19
Thermal Conductivity, W/m-K 0.17
0.14
Thermal Diffusivity, mm2/s 0.082
0.1