EVA vs. PAI
Both EVA and PAI are thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.
For each property being compared, the top bar is EVA and the bottom bar is PAI.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 0.015 to 0.080 | |
| 4.0 to 8.3 |
| Elongation at Break, % | 300 to 800 | |
| 3.0 to 12 |
| Tensile Strength: Ultimate (UTS), MPa | 3.0 to 35 | |
| 100 to 180 |
Thermal Properties
| Maximum Temperature: Decomposition, °C | 450 | |
| 490 |
| Specific Heat Capacity, J/kg-K | 1400 | |
| 910 to 1000 |
| Thermal Conductivity, W/m-K | 0.34 | |
| 0.26 to 0.53 |
Otherwise Unclassified Properties
| Density, g/cm3 | 0.93 to 1.0 | |
| 1.4 to 1.6 |
Common Calculations
| Stiffness to Weight: Axial, points | 0.0087 to 0.048 | |
| 1.6 to 3.2 |
| Stiffness to Weight: Bending, points | 8.6 to 15 | |
| 38 to 47 |
| Strength to Weight: Axial, points | 0.87 to 10 | |
| 19 to 34 |
| Strength to Weight: Bending, points | 4.8 to 26 | |
| 33 to 49 |
| Thermal Diffusivity, mm2/s | 0.25 to 0.26 | |
| 0.16 to 0.41 |