PTFE vs. PPA
Both PTFE and PPA 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 PTFE and the bottom bar is PPA.
Metric UnitsUS Customary Units
Mechanical Properties
| Elongation at Break, % | 75 to 300 | |
| 30 |
| Flexural Modulus, GPa | 0.4 to 1.3 | |
| 2.3 to 2.4 |
| Flexural Strength, MPa | 13 to 50 | |
| 95 to 110 |
| Tensile Strength: Ultimate (UTS), MPa | 13 to 25 | |
| 57 to 69 |
Thermal Properties
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 66 to 70 | |
| 120 |
| Melting Onset (Solidus), °C | 330 to 340 | |
| 310 |
| Thermal Conductivity, W/m-K | 0.24 to 0.65 | |
| 0.15 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.1 to 2.3 | |
| 1.1 |
| Water Absorption After 24 Hours, % | 0.0093 to 0.050 | |
| 0.7 |
Common Calculations
| Strength to Weight: Axial, points | 1.7 to 3.2 | |
| 14 to 17 |
| Strength to Weight: Bending, points | 5.7 to 8.7 | |
| 29 to 33 |