All Material Comparison
Typical Properties of Fluoropolymers
| Property | Method No. | Units | PTFE | FEP | PFA | ETFE | ECTFE | PCTFE | PVDF |
| Specific Gravity | D792 | - | 2.17 | 2.15 | 2.15 | 1.74 | 1.7 | 1.7 | 1.78 |
| Melting Point | D2236 | deg F deg C | 621 327 | 518 270 | 581 305 | 527 275 | 464 240 | 410 210 | 352 177 |
| Tensile Strength | D638 D1708 D1457 | psi MPa | 2500 17 | 3400 23 | 4,000 27 | 6,960 48 | 6,960 48 | 6,060 41.78 | 7,830 54 |
| Yield Strength | D638 | psi | 1,450 | 1,740 | 2,250 | 3,480 | 4,500 | 5,800 | 6,670 |
| Elongation | % | 200-500 | 250-350 | 300 | 200-500 | 200-300 | 80-250 | 20-150 | |
| Tensile Modulus | D638 | ksi | 87 | 72.5 | 101.5 | 217.5 | 240 | 218 | 348 |
| Flex Modulus | D790 | psi x 1000 MPa | 98 675 | 101.5 700 | 95 655 | 203 1400 | 261 1800 | - | 333.5 2300 |
| Izod Impact | D256 | ft-lbs/in J/m | 3.2 173 | No Break | No Break | No Break | - | - | 2-4 |
| Hardness | D2240 | Shore D | 60 | 57 | 62 | 75 | 75 | 90 | 79 |
| HDT, @ 66 psi | D648 | deg F | 250 | 158 | 164 | 219 | 240 | 248 | 300 |
| HDT, @ 264 psi | D648 | deg F | 122 | 129 | 118 | 160 | 169 | - | 239 |
| Max. Cont Use Temp | deg F deg C | 500 260 | 400 204 | 500 260 | 300 149 | ||||
| *Flame Rating | UL 94 | VO | VO | VO | VO | ||||
| Limiting Oxygen Index | D2863 | % | >95 | >95 | >95 | 30-36 | |||
| Thermal Conductivity | Btu·in/h·ft2·°F W/m·K | 1.7 0.25 | 1.4 0.20 | 1.3 0.19 | 1.65 0.24 | ||||
| Dielectric Constant | D150 | 1 MHZ | 2.1 | 2.1 | 2.1 | 2.6 | |||
| **Dielectric Strength | D149 | Volts/µm | 18 | 53 | 80 | 79 | |||
| Resistivity - Volume | D257 | ohm-cm | >1018 | >1018 | >1018 | >1017 |