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EVA vs. DAP

EVA belongs to the thermoplastics classification, while DAP belongs to the thermoset plastics. There are 13 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

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

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 0.015 to 0.080
13
Elongation at Break, % 300 to 800
31
Tensile Strength: Ultimate (UTS), MPa 3.0 to 35
28

Thermal Properties

Specific Heat Capacity, J/kg-K 1400
1450
Thermal Conductivity, W/m-K 0.34
0.6

Electrical Properties

Dielectric Constant (Relative Permittivity) At 1 Hz 2.8
5.2
Dielectric Strength (Breakdown Potential), kV/mm 21
40

Otherwise Unclassified Properties

Density, g/cm3 0.93 to 1.0
1.7

Common Calculations

Stiffness to Weight: Axial, points 0.0087 to 0.048
4.1
Stiffness to Weight: Bending, points 8.6 to 15
46
Strength to Weight: Axial, points 0.87 to 10
4.5
Strength to Weight: Bending, points 4.8 to 26
12
Thermal Diffusivity, mm2/s 0.25 to 0.26
0.24