PTFE vs. Alpha Quartz
PTFE and alpha quartz belong to fundamentally different material chemistries. PTFE is a polymeric material, while alpha quartz is ceramic. Therefore, their performance will be even more dissimilar than would be suggested by the difference in properties. There are 4 material properties with values for both materials. Properties with values for just one material (24, in this case) are not shown.
For each property being compared, the top bar is PTFE and the bottom bar is alpha quartz.
Metric UnitsUS Customary Units
Material Properties
| Density, g/cm3 | 2.1 to 2.3 | |
| 2.7 |
| Melting Onset (Solidus), °C | 330 to 340 | |
| 1590 |
| Thermal Conductivity, W/m-K | 0.24 to 0.65 | |
| 8.5 |
| Thermal Expansion, µm/m-K | 110 to 120 | |
| 9.5 |