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DAP vs. PBT

DAP belongs to the thermoset plastics classification, while PBT belongs to the thermoplastics. There are 12 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 DAP and the bottom bar is PBT.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 13
2.7 to 8.7
Elongation at Break, % 31
2.5 to 43
Flexural Strength, MPa 62
79 to 210
Tensile Strength: Ultimate (UTS), MPa 28
58 to 140

Thermal Properties

Glass Transition Temperature, °C 150
40
Heat Deflection Temperature At 1.82 MPa (264 psi), °C 160
4.0
Specific Heat Capacity, J/kg-K 1450
1040 to 1200

Otherwise Unclassified Properties

Density, g/cm3 1.7
1.3 to 1.5

Common Calculations

Stiffness to Weight: Axial, points 4.1
1.1 to 3.2
Stiffness to Weight: Bending, points 46
35 to 45
Strength to Weight: Axial, points 4.5
12 to 25
Strength to Weight: Bending, points 12
25 to 38