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EVA vs. PS

Both EVA and PS are thermoplastics. There are 14 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 EVA and the bottom bar is PS.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 0.015 to 0.080
1.9 to 2.9
Elongation at Break, % 300 to 800
1.8 to 40
Tensile Strength: Ultimate (UTS), MPa 3.0 to 35
32 to 44

Thermal Properties

Maximum Temperature: Decomposition, °C 450
320 to 330
Specific Heat Capacity, J/kg-K 1400
1250 to 1400
Thermal Conductivity, W/m-K 0.34
0.14 to 0.22
Vicat Softening Temperature, °C 45 to 80
100 to 110

Electrical Properties

Dielectric Strength (Breakdown Potential), kV/mm 21
18 to 20

Otherwise Unclassified Properties

Density, g/cm3 0.93 to 1.0
1.0

Common Calculations

Stiffness to Weight: Axial, points 0.0087 to 0.048
1.0 to 1.5
Stiffness to Weight: Bending, points 8.6 to 15
40 to 45
Strength to Weight: Axial, points 0.87 to 10
8.5 to 12
Strength to Weight: Bending, points 4.8 to 26
22 to 26
Thermal Diffusivity, mm2/s 0.25 to 0.26
0.11 to 0.15