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CR Rubber vs. PMP

CR rubber belongs to the thermoset elastomers (rubber) classification, while PMP belongs to the thermoplastics. There are 10 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is CR rubber and the bottom bar is PMP.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.5
0.83
Elongation at Break, % 380
30
Glass Transition Temperature, °C -45
30
Maximum Temperature: Mechanical, °C 130
140
Specific Heat Capacity, J/kg-K 1120
1750
Strength to Weight: Axial, points 1.9
8.0
Strength to Weight: Bending, points 7.1
22
Tensile Strength: Ultimate (UTS), MPa 11
24
Thermal Conductivity, W/m-K 0.19
0.17
Thermal Diffusivity, mm2/s 0.11
0.12