PET vs. UHMW-PE
Both PET and UHMW-PE are thermoplastics. There are 11 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.
For each property being compared, the top bar is PET and the bottom bar is UHMW-PE.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 3.5 to 11 | |
| 0.8 |
| Elongation at Break, % | 2.5 to 70 | |
| 400 |
| Tensile Strength: Ultimate (UTS), MPa | 60 to 140 | |
| 49 |
Thermal Properties
| Melting Onset (Solidus), °C | 260 | |
| 130 |
| Specific Heat Capacity, J/kg-K | 1000 to 1150 | |
| 1750 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 Hz | 3.7 | |
| 2.2 |
Otherwise Unclassified Properties
| Density, g/cm3 | 1.4 to 1.6 | |
| 0.94 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.2 to 4.4 | |
| 0.47 |
| Stiffness to Weight: Bending, points | 32 to 54 | |
| 33 |
| Strength to Weight: Axial, points | 12 to 27 | |
| 14 |
| Strength to Weight: Bending, points | 25 to 41 | |
| 32 |