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EPDM Rubber vs. PFA

EPDM rubber belongs to the thermoset elastomers (rubber) classification, while PFA belongs to the thermoplastics. There are 9 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EPDM rubber and the bottom bar is PFA.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 1.0
2.2
Elongation at Break, % 400
300
Maximum Temperature: Mechanical, °C 160
260
Specific Heat Capacity, J/kg-K 2000
1000
Strength to Weight: Axial, points 3.6
3.9
Strength to Weight: Bending, points 12
10
Tensile Strength: Ultimate (UTS), MPa 13
30
Thermal Conductivity, W/m-K 0.2
0.25
Thermal Diffusivity, mm2/s 0.1
0.12