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PFA vs. COC

Both PFA and COC are thermoplastics. There are 10 material properties with values for both materials. Properties with values for just one material (15, 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 PFA and the bottom bar is COC.

Metric UnitsUS Customary Units

Material Properties

Density, g/cm3 2.2
1.0
Electrical Resistivity Order of Magnitude, 10x Ω-m 16
14
Elongation at Break, % 300
2.5
Heat Deflection Temperature At 455 kPa (66 psi), °C 75
130
Refractive Index 1.4
1.5
Strength to Weight: Axial, points 3.9
17
Strength to Weight: Bending, points 10
34
Tensile Strength: Ultimate (UTS), MPa 30
60
Thermal Expansion, µm/m-K 120
60
Water Absorption After 24 Hours, % 0
0