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DAP vs. PETG

DAP belongs to the thermoset plastics classification, while PETG belongs to the thermoplastics. There are 19 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is DAP and the bottom bar is PETG.

Metric UnitsUS Customary Units

Mechanical Properties

Compressive (Crushing) Strength, MPa 150
55
Elastic (Young's, Tensile) Modulus, GPa 13
2.2
Flexural Strength, MPa 62
77
Impact Strength: Notched Izod, J/m 14
77
Tensile Strength: Ultimate (UTS), MPa 28
53

Thermal Properties

Glass Transition Temperature, °C 150
81
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 160
69
Specific Heat Capacity, J/kg-K 1450
1200
Thermal Conductivity, W/m-K 0.6
0.29
Thermal Expansion, µm/m-K 25
68

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz 5.2
2.6
Dielectric Strength (Breakdown Potential), kV/mm 40
16

Otherwise Unclassified Properties

Density, g/cm3 1.7
1.3

Common Calculations

Stiffness to Weight: Axial, points 4.1
1.0
Stiffness to Weight: Bending, points 46
34
Strength to Weight: Axial, points 4.5
12
Strength to Weight: Bending, points 12
25
Thermal Diffusivity, mm2/s 0.24
0.19
Thermal Shock Resistance, points 6.3
25