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UHMW-PE vs. PTFE

Both UHMW-PE and PTFE are thermoplastics. There are 9 material properties with values for both materials. Properties with values for just one material (18, 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 UHMW-PE and the bottom bar is PTFE.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 0.94
2.1 to 2.3
Electrical Dissipation At 1 MHz 0.053
0.00017 to 0.050
Elongation at Break, % 400
75 to 300
Melting Onset (Solidus), °C 130
330 to 340
Strength to Weight: Axial, points 14
1.7 to 3.2
Strength to Weight: Bending, points 32
5.7 to 8.7
Tensile Strength: Ultimate (UTS), MPa 49
13 to 25
Thermal Conductivity, W/m-K 0.41
0.24 to 0.65
Thermal Expansion, µm/m-K 180
110 to 120