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PETG vs. Low Friction PAI

Both PETG and low friction PAI are thermoplastics. There are 18 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 PETG and the bottom bar is low friction PAI.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.2
6.0
Flexural Modulus, GPa 2.1
6.0
Flexural Strength, MPa 77
160
Shear Strength, MPa 62
120
Tensile Strength: Ultimate (UTS), MPa 53
100

Thermal Properties

Glass Transition Temperature, °C 81
280
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 69
280
Thermal Conductivity, W/m-K 0.29
0.53
Thermal Expansion, µm/m-K 68
25

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 MHz 2.4
6.0

Otherwise Unclassified Properties

Density, g/cm3 1.3
1.5
Water Absorption After 24 Hours, % 0.2
0.4

Common Calculations

Stiffness to Weight: Axial, points 1.0
2.3
Stiffness to Weight: Bending, points 34
42
Strength to Weight: Axial, points 12
19
Strength to Weight: Bending, points 25
33
Thermal Diffusivity, mm2/s 0.19
0.16 to 0.41
Thermal Shock Resistance, points 25
48