PTFE vs. UHMW-PE

Both PTFE and UHMW-PE 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 PTFE and the bottom bar is UHMW-PE.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm³		2.1 to 2.3
Density, g/cm³		0.94

Electrical Dissipation At 1 MHz		0.00017 to 0.050
Electrical Dissipation At 1 MHz		0.053

Elongation at Break, %		75 to 300
Elongation at Break, %		400

Melting Onset (Solidus), °C		330 to 340
Melting Onset (Solidus), °C		130

Strength to Weight: Axial, points		1.7 to 3.2
Strength to Weight: Axial, points		14

Strength to Weight: Bending, points		5.7 to 8.7
Strength to Weight: Bending, points		32

Tensile Strength: Ultimate (UTS), MPa		13 to 25
Tensile Strength: Ultimate (UTS), MPa		49

Thermal Conductivity, W/m-K		0.24 to 0.65
Thermal Conductivity, W/m-K		0.41

Thermal Expansion, µm/m-K		110 to 120
Thermal Expansion, µm/m-K		180

PTFE vs. UHMW-PE

Material Properties

Find Materials

Table of Contents