PTFE vs. PMMA
Both PTFE and PMMA are thermoplastics. There are 12 material properties with values for both materials. Properties with values for just one material (22, in this case) are not shown.
For each property being compared, the top bar is PTFE and the bottom bar is PMMA.
Metric UnitsUS Customary Units
Mechanical Properties
| Compressive (Crushing) Strength, MPa | 6.9 to 24 | |
| 120 |
| Elongation at Break, % | 75 to 300 | |
| 4.0 |
| Flexural Strength, MPa | 13 to 50 | |
| 110 |
| Tensile Strength: Ultimate (UTS), MPa | 13 to 25 | |
| 71 |
Thermal Properties
| Heat Deflection Temperature At 1.82 MPa (264 psi), °C | 66 to 70 | |
| 96 |
| Melting Onset (Solidus), °C | 330 to 340 | |
| 180 |
| Thermal Conductivity, W/m-K | 0.24 to 0.65 | |
| 0.19 |
| Thermal Expansion, µm/m-K | 110 to 120 | |
| 76 |
Otherwise Unclassified Properties
| Density, g/cm3 | 2.1 to 2.3 | |
| 1.2 |
| Limiting Oxygen Index (LOI), % | 90 | |
| 17 |
Common Calculations
| Strength to Weight: Axial, points | 1.7 to 3.2 | |
| 17 |
| Strength to Weight: Bending, points | 5.7 to 8.7 | |
| 32 |