PTFE vs. PAI
Both PTFE and PAI are thermoplastics. There are 14 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 PTFE and the bottom bar is PAI.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 6.9 to 24 | |
| 260 to 300 |
| Elongation at Break, % | 75 to 300 | |
| 3.0 to 12 |
| Flexural Modulus, GPa | 0.4 to 1.3 | |
| 4.0 to 6.8 |
| Flexural Strength, MPa | 13 to 50 | |
| 160 to 320 |
| Tensile Strength: Ultimate (UTS), MPa | 13 to 25 | |
| 100 to 180 |
Thermal Properties
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 66 to 70 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 260 to 270 | |
| 260 |
| Thermal Conductivity, W/m-K | 0.24 to 0.65 | |
| 0.26 to 0.53 |
| Thermal Expansion, µm/m-K | 110 to 120 | |
| 15 to 34 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.1 to 2.3 | |
| 1.4 to 1.6 |
| Limiting Oxygen Index (LOI), % | 90 | |
| 45 |
| Water Absorption After 24 Hours, % | 0.0093 to 0.050 | |
| 0.3 to 0.4 |
Common Calculations
| Strength to Weight: Axial, points | 1.7 to 3.2 | |
| 19 to 34 |
| Strength to Weight: Bending, points | 5.7 to 8.7 | |
| 33 to 49 |