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CR Rubber vs. UPVC

CR rubber belongs to the thermoset elastomers (rubber) classification, while uPVC belongs to the thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 380
58
Tensile Strength: Ultimate (UTS), MPa 11
47

Thermal Properties

Glass Transition Temperature, °C -45
85
Maximum Temperature: Autoignition, °C 410
400
Maximum Temperature: Decomposition, °C 350
270
Maximum Temperature: Mechanical, °C 130
95
Specific Heat Capacity, J/kg-K 1120
880
Thermal Conductivity, W/m-K 0.19
0.16

Otherwise Unclassified Properties

Density, g/cm3 1.5
1.4
Limiting Oxygen Index (LOI), % 26
42

Common Calculations

Strength to Weight: Axial, points 1.9
9.1
Strength to Weight: Bending, points 7.1
20
Thermal Diffusivity, mm2/s 0.11
0.13