PVC-P vs. PFA

Both PVC-P and PFA are thermoplastics. There are 16 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is PVC-P and the bottom bar is PFA.

Plasticized (Flexible) Polyvinyl Chloride (PVC-P)Perfluoroalkoxy (PFA)

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, %		180
Elongation at Break, %		300

Tensile Strength: Ultimate (UTS), MPa		16
Tensile Strength: Ultimate (UTS), MPa		30

Thermal Properties

Maximum Temperature: Mechanical, °C		75
Maximum Temperature: Mechanical, °C		260

Melting Onset (Solidus), °C		190
Melting Onset (Solidus), °C		300

Specific Heat Capacity, J/kg-K		1400
Specific Heat Capacity, J/kg-K		1000

Thermal Conductivity, W/m-K		0.17
Thermal Conductivity, W/m-K		0.25

Thermal Expansion, µm/m-K		160
Thermal Expansion, µm/m-K		120

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz		5.8
Dielectric Constant (Relative Permittivity) At 1 Hz		2.1

Dielectric Strength (Breakdown Potential), kV/mm		20
Dielectric Strength (Breakdown Potential), kV/mm		22

Electrical Resistivity Order of Magnitude, 10^x Ω-m		11
Electrical Resistivity Order of Magnitude, 10^x Ω-m		16

Otherwise Unclassified Properties

Density, g/cm³		1.4
Density, g/cm³		2.2

Limiting Oxygen Index (LOI), %		44
Limiting Oxygen Index (LOI), %		80

Water Absorption After 24 Hours, %		0.45
Water Absorption After 24 Hours, %		0

Common Calculations

Strength to Weight: Axial, points		3.2
Strength to Weight: Axial, points		3.9

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

Thermal Diffusivity, mm²/s		0.090
Thermal Diffusivity, mm²/s		0.12