PTFE vs. PETG
Both PTFE and PETG are thermoplastics. There are 13 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 PETG.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 6.9 to 24 | |
| 55 |
| Flexural Modulus, GPa | 0.4 to 1.3 | |
| 2.1 |
| Flexural Strength, MPa | 13 to 50 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 13 to 25 | |
| 53 |
Thermal Properties
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 66 to 70 | |
| 69 |
| Melting Onset (Solidus), °C | 330 to 340 | |
| 140 |
| Thermal Conductivity, W/m-K | 0.24 to 0.65 | |
| 0.29 |
| Thermal Expansion, µm/m-K | 110 to 120 | |
| 68 |
Electrical Properties
| Dielectric Constant (Relative Permittivity) At 1 MHz | 2.1 to 2.4 | |
| 2.4 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.1 to 2.3 | |
| 1.3 |
| Water Absorption After 24 Hours, % | 0.0093 to 0.050 | |
| 0.2 |
Common Calculations
| Strength to Weight: Axial, points | 1.7 to 3.2 | |
| 12 |
| Strength to Weight: Bending, points | 5.7 to 8.7 | |
| 25 |