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LDPE vs. IR Rubber

LDPE belongs to the thermoplastics classification, while IR rubber belongs to the thermoset elastomers (rubber). There are 10 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

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

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 0.92
1.0
Glass Transition Temperature, °C -130
-70
Maximum Temperature: Autoignition, °C 380
300
Maximum Temperature: Decomposition, °C 400
300
Specific Heat Capacity, J/kg-K 2300
1550
Strength to Weight: Axial, points 2.1
5.6
Strength to Weight: Bending, points 8.8
17
Tensile Strength: Ultimate (UTS), MPa 7.0
19
Thermal Conductivity, W/m-K 0.36
0.14
Thermal Diffusivity, mm2/s 0.17
0.1