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CR Rubber vs. ETFE

CR rubber belongs to the thermoset elastomers (rubber) classification, while ETFE belongs to the thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 380
230
Tensile Strength: Ultimate (UTS), MPa 11
46

Thermal Properties

Maximum Temperature: Autoignition, °C 410
540
Maximum Temperature: Decomposition, °C 350
400
Maximum Temperature: Mechanical, °C 130
160
Specific Heat Capacity, J/kg-K 1120
1000
Thermal Conductivity, W/m-K 0.19
0.24

Otherwise Unclassified Properties

Density, g/cm3 1.5
1.8
Limiting Oxygen Index (LOI), % 26
30

Common Calculations

Strength to Weight: Axial, points 1.9
7.3
Strength to Weight: Bending, points 7.1
16
Thermal Diffusivity, mm2/s 0.11
0.14