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CAB vs. PTFE

Both CAB and PTFE are thermoplastics. There are 14 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elongation at Break, % 50 to 55
75 to 300
Flexural Modulus, GPa 0.8 to 1.7
0.4 to 1.3
Flexural Strength, MPa 21 to 57
13 to 50
Tensile Strength: Ultimate (UTS), MPa 20 to 50
13 to 25

Thermal Properties

Heat Deflection Temperature At 1.82 MPa (264 psi), °C 53 to 82
66 to 70
Thermal Conductivity, W/m-K 0.25
0.24 to 0.65
Thermal Expansion, µm/m-K 14
110 to 120

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 3.6
2.1 to 2.4
Electrical Resistivity Order of Magnitude, 10x Ω-m 16
2.0 to 18

Otherwise Unclassified Properties

Density, g/cm3 1.2
2.1 to 2.3
Limiting Oxygen Index (LOI), % 18
90
Water Absorption After 24 Hours, % 1.2 to 1.6
0.0093 to 0.050

Common Calculations

Strength to Weight: Axial, points 4.8 to 12
1.7 to 3.2
Strength to Weight: Bending, points 14 to 25
5.7 to 8.7