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30 GF PET vs. PETG

Both 30 GF PET and PETG are thermoplastics. There are 13 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown.

For each property being compared, the top bar is 30 GF PET and the bottom bar is PETG.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 11
2.2
Flexural Modulus, GPa 8.3
2.1
Impact Strength: Notched Izod, J/m 85
77
Tensile Strength: Ultimate (UTS), MPa 140
53

Thermal Properties

Glass Transition Temperature, °C 70
81
Melting Onset (Solidus), °C 260
140
Specific Heat Capacity, J/kg-K 1020
1200

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz 3.7
2.6

Otherwise Unclassified Properties

Density, g/cm3 1.6
1.3

Common Calculations

Stiffness to Weight: Axial, points 3.9
1.0
Stiffness to Weight: Bending, points 48
34
Strength to Weight: Axial, points 25
12
Strength to Weight: Bending, points 38
25