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PETG vs. LDPE

Both PETG and LDPE are thermoplastics. There are 15 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 PETG and the bottom bar is LDPE.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 2.2
0.3
Tensile Strength: Ultimate (UTS), MPa 53
7.0

Thermal Properties

Glass Transition Temperature, °C 81
-130
Melting Onset (Solidus), °C 140
110
Specific Heat Capacity, J/kg-K 1200
2300
Thermal Conductivity, W/m-K 0.29
0.36
Thermal Expansion, µm/m-K 68
220

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz 2.6
2.3

Otherwise Unclassified Properties

Density, g/cm3 1.3
0.92

Common Calculations

Stiffness to Weight: Axial, points 1.0
0.18
Stiffness to Weight: Bending, points 34
24
Strength to Weight: Axial, points 12
2.1
Strength to Weight: Bending, points 25
8.8
Thermal Diffusivity, mm2/s 0.19
0.17
Thermal Shock Resistance, points 25
7.6