PTFE vs. Hexagonal Boron Nitride
PTFE and hexagonal boron nitride belong to fundamentally different material chemistries. PTFE is a polymeric material, while hexagonal boron nitride is ceramic. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 9 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.
For each property being compared, the top bar is PTFE and the bottom bar is hexagonal boron nitride.
Metric UnitsUS Customary Units
Material Properties
| Compressive (Crushing) Strength, MPa | 6.9 to 24 | |
| 21 to 250 |
| Density, g/cm3 | 2.1 to 2.3 | |
| 1.9 to 2.1 |
| Dielectric Constant (Relative Permittivity) At 1 MHz | 2.1 to 2.4 | |
| 4.0 to 4.4 |
| Electrical Dissipation At 1 MHz | 0.00017 to 0.050 | |
| 0.00075 to 0.0018 |
| Electrical Resistivity Order of Magnitude, 10x Ω-m | 2.0 to 18 | |
| 13 to 15 |
| Flexural Strength, MPa | 13 to 50 | |
| 18 to 140 |
| Maximum Temperature: Mechanical, °C | 260 to 270 | |
| 1030 to 2350 |
| Thermal Conductivity, W/m-K | 0.24 to 0.65 | |
| 29 to 96 |
| Thermal Expansion, µm/m-K | 110 to 120 | |
| 0.54 to 18 |