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Silicone Plastic vs. HDPE

Silicone plastic belongs to the thermoset plastics classification, while HDPE belongs to the thermoplastics. There are 5 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is silicone plastic and the bottom bar is HDPE.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.9
1.0 to 1.3
Specific Heat Capacity, J/kg-K 850
1330 to 2400
Strength to Weight: Axial, points 5.5
6.9 to 17
Strength to Weight: Bending, points 13
19 to 32
Tensile Strength: Ultimate (UTS), MPa 38
24 to 80