PFA vs. Silicone Plastic

PFA belongs to the thermoplastics classification, while silicone plastic belongs to the thermoset plastics. There are 10 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is PFA and the bottom bar is silicone plastic.

Perfluoroalkoxy (PFA)Silicone Plastic

Metric UnitsUS Customary Units

Material Properties

Density, g/cm³		2.2
Density, g/cm³		1.9

Dielectric Strength (Breakdown Potential), kV/mm		22
Dielectric Strength (Breakdown Potential), kV/mm		30

Electrical Resistivity Order of Magnitude, 10^x Ω-m		16
Electrical Resistivity Order of Magnitude, 10^x Ω-m		12

Specific Heat Capacity, J/kg-K		1000
Specific Heat Capacity, J/kg-K		850

Strength to Weight: Axial, points		3.9
Strength to Weight: Axial, points		5.5

Strength to Weight: Bending, points		10
Strength to Weight: Bending, points		13

Tensile Strength: Ultimate (UTS), MPa		30
Tensile Strength: Ultimate (UTS), MPa		38

Thermal Conductivity, W/m-K		0.25
Thermal Conductivity, W/m-K		0.35

Thermal Diffusivity, mm²/s		0.12
Thermal Diffusivity, mm²/s		0.22

Thermal Expansion, µm/m-K		120
Thermal Expansion, µm/m-K		35

PFA vs. Silicone Plastic

Material Properties

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