PTFE vs. Epoxy
PTFE belongs to the thermoplastics classification, while epoxy belongs to the thermoset plastics. There are 10 material properties with values for both materials. Properties with values for just one material (21, in this case) are not shown.
For each property being compared, the top bar is PTFE and the bottom bar is epoxy.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.1 to 2.3 | |
| 1.3 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 2.0 to 18 | |
| 13 |
| Elongation at Break, % | 75 to 300 | |
| 4.5 |
| Limiting Oxygen Index (LOI), % | 90 | |
| 20 |
| Maximum Temperature: Mechanical, °C | 260 to 270 | |
| 130 |
| Strength to Weight: Axial, points | 1.7 to 3.2 | |
| 14 |
| Strength to Weight: Bending, points | 5.7 to 8.7 | |
| 28 |
| Tensile Strength: Ultimate (UTS), MPa | 13 to 25 | |
| 67 |
| Thermal Conductivity, W/m-K | 0.24 to 0.65 | |
| 0.2 |
| Thermal Expansion, µm/m-K | 110 to 120 | |
| 100 |