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LDPE vs. PFA

Both LDPE and PFA are thermoplastics. There are 10 material properties with values for both materials. Properties with values for just one material (20, 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 LDPE and the bottom bar is PFA.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 0.92
2.2
Dielectric Constant (Relative Permittivity) At 1 Hz 2.3
2.1
Melting Onset (Solidus), °C 110
300
Specific Heat Capacity, J/kg-K 2300
1000
Strength to Weight: Axial, points 2.1
3.9
Strength to Weight: Bending, points 8.8
10
Tensile Strength: Ultimate (UTS), MPa 7.0
30
Thermal Conductivity, W/m-K 0.36
0.25
Thermal Diffusivity, mm2/s 0.17
0.12
Thermal Expansion, µm/m-K 220
120