PET vs. EVA
Both PET and EVA are thermoplastics. There are 12 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 PET and the bottom bar is EVA.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 3.5 to 11 | |
| 0.015 to 0.080 |
| Elongation at Break, % | 2.5 to 70 | |
| 300 to 800 |
| Tensile Strength: Ultimate (UTS), MPa | 60 to 140 | |
| 3.0 to 35 |
Thermal Properties
| Maximum Temperature: Decomposition, °C | 390 | |
| 450 |
| Melting Onset (Solidus), °C | 260 | |
| 55 to 95 |
| Specific Heat Capacity, J/kg-K | 1000 to 1150 | |
| 1400 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 Hz | 3.7 | |
| 2.8 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.4 to 1.6 | |
| 0.93 to 1.0 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.2 to 4.4 | |
| 0.0087 to 0.048 |
| Stiffness to Weight: Bending, points | 32 to 54 | |
| 8.6 to 15 |
| Strength to Weight: Axial, points | 12 to 27 | |
| 0.87 to 10 |
| Strength to Weight: Bending, points | 25 to 41 | |
| 4.8 to 26 |