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CR Rubber vs. PPSU

CR rubber belongs to the thermoset elastomers (rubber) classification, while PPSU belongs to the thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 380
26
Tensile Strength: Ultimate (UTS), MPa 11
95

Thermal Properties

Glass Transition Temperature, °C -45
220
Maximum Temperature: Autoignition, °C 410
580
Maximum Temperature: Decomposition, °C 350
560
Maximum Temperature: Mechanical, °C 130
160
Specific Heat Capacity, J/kg-K 1120
970
Thermal Conductivity, W/m-K 0.19
0.24

Otherwise Unclassified Properties

Density, g/cm3 1.5
1.4
Limiting Oxygen Index (LOI), % 26
38

Common Calculations

Strength to Weight: Axial, points 1.9
19
Strength to Weight: Bending, points 7.1
33
Thermal Diffusivity, mm2/s 0.11
0.17