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PTFE vs. PCTFE

Both PTFE and PCTFE are thermoplastics. There are 16 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is PTFE and the bottom bar is PCTFE.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 6.9 to 24
38
Elongation at Break, % 75 to 300
150
Flexural Modulus, GPa 0.4 to 1.3
1.2
Flexural Strength, MPa 13 to 50
59
Tensile Strength: Ultimate (UTS), MPa 13 to 25
36

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 66 to 70
110
Maximum Temperature: Mechanical, °C 260 to 270
150
Melting Onset (Solidus), °C 330 to 340
220
Thermal Conductivity, W/m-K 0.24 to 0.65
0.21
Thermal Expansion, µm/m-K 110 to 120
130

Electrical Properties

Electrical Resistivity Order of Magnitude, 10x Ω-m 2.0 to 18
16

Otherwise Unclassified Properties

Density, g/cm3 2.1 to 2.3
2.1
Limiting Oxygen Index (LOI), % 90
80
Water Absorption After 24 Hours, % 0.0093 to 0.050
0.0094

Common Calculations

Strength to Weight: Axial, points 1.7 to 3.2
4.6
Strength to Weight: Bending, points 5.7 to 8.7
11