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IR Rubber vs. NBR Rubber

Both IR rubber and NBR rubber are thermoset elastomers (rubber). There are 9 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

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

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.0
1.3
Elongation at Break, % 600
380
Glass Transition Temperature, °C -70
-30
Specific Heat Capacity, J/kg-K 1550
1350
Strength to Weight: Axial, points 5.6
3.9
Strength to Weight: Bending, points 17
12
Tensile Strength: Ultimate (UTS), MPa 19
18
Thermal Conductivity, W/m-K 0.14
0.25
Thermal Diffusivity, mm2/s 0.1
0.15