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UPVC vs. PETG

Both uPVC and PETG are thermoplastics. There are 22 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 uPVC and the bottom bar is PETG.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 3.7
2.2
Flexural Modulus, GPa 3.5
2.1
Flexural Strength, MPa 80
77
Impact Strength: Notched Izod, J/m 360
77
Tensile Strength: Ultimate (UTS), MPa 47
53

Thermal Properties

Glass Transition Temperature, °C 85
81
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 69
69
Heat Deflection Temperature At 455 kPa (66 psi), °C 90
73
Melting Onset (Solidus), °C 180
140
Specific Heat Capacity, J/kg-K 880
1200
Thermal Conductivity, W/m-K 0.16
0.29
Thermal Expansion, µm/m-K 61
68

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz 3.4
2.6
Dielectric Strength (Breakdown Potential), kV/mm 19
16

Otherwise Unclassified Properties

Density, g/cm3 1.4
1.3
Water Absorption After 24 Hours, % 0.24
0.2

Common Calculations

Stiffness to Weight: Axial, points 1.5
1.0
Stiffness to Weight: Bending, points 37
34
Strength to Weight: Axial, points 9.1
12
Strength to Weight: Bending, points 20
25
Thermal Diffusivity, mm2/s 0.13
0.19
Thermal Shock Resistance, points 15
25