PTFE vs. PET
Both PTFE and PET are thermoplastics. There are 9 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.
For each property being compared, the top bar is PTFE and the bottom bar is PET.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.1 to 2.3 | |
| 1.4 to 1.6 |
| Elongation at Break, % | 75 to 300 | |
| 2.5 to 70 |
| Flexural Modulus, GPa | 0.4 to 1.3 | |
| 8.3 to 14 |
| Limiting Oxygen Index (LOI), % | 90 | |
| 21 |
| Maximum Temperature: Mechanical, °C | 260 to 270 | |
| 80 |
| Melting Onset (Solidus), °C | 330 to 340 | |
| 260 |
| Strength to Weight: Axial, points | 1.7 to 3.2 | |
| 12 to 27 |
| Strength to Weight: Bending, points | 5.7 to 8.7 | |
| 25 to 41 |
| Tensile Strength: Ultimate (UTS), MPa | 13 to 25 | |
| 60 to 140 |