PS vs. EVA
Both PS and EVA 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 PS and the bottom bar is EVA.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 1.9 to 2.9 | |
| 0.015 to 0.080 |
| Elongation at Break, % | 1.8 to 40 | |
| 300 to 800 |
| Tensile Strength: Ultimate (UTS), MPa | 32 to 44 | |
| 3.0 to 35 |
Thermal Properties
| Maximum Temperature: Decomposition, °C | 320 to 330 | |
| 450 |
| Specific Heat Capacity, J/kg-K | 1250 to 1400 | |
| 1400 |
| Thermal Conductivity, W/m-K | 0.14 to 0.22 | |
| 0.34 |
| Vicat Softening Temperature, °C | 100 to 110 | |
| 45 to 80 |
Electrical Properties
| Dielectric Strength (Breakdown Potential), kV/mm | 18 to 20 | |
| 21 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.0 | |
| 0.93 to 1.0 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.0 to 1.5 | |
| 0.0087 to 0.048 |
| Stiffness to Weight: Bending, points | 40 to 45 | |
| 8.6 to 15 |
| Strength to Weight: Axial, points | 8.5 to 12 | |
| 0.87 to 10 |
| Strength to Weight: Bending, points | 22 to 26 | |
| 4.8 to 26 |
| Thermal Diffusivity, mm2/s | 0.11 to 0.15 | |
| 0.25 to 0.26 |