Characteristics of Fluor polymers
Dimension unit | PTFE | FEP | PFA | ETFE | PVDF | PCTFE | |
Processing temperature | °C | 360-380 | 340-400 | 340-370 | 300-340 | 200-250 | 260-290 |
Working temperature | °C | +260 | +205 | +260 | +150 | +150 | +170 |
Embrittlement below | °C | -200 | -100 | -200 | -100 | -60 | -40 |
Melting point | °C | +327 | +250-280 | +305-310 | +265-275 | +168-180 | +180-220 |
Dimension unit | PTFE | FEP | PFA | ETFE | PVDF | PCTFE | |
Density | g/cm³ | 2,13-2,23 | 2,12-2,17 | 2,14-2,17 | 1,67-1,75 | 1,76-1,78 | 2,07-2,12 |
Tensile strength | N/mm² | 20-40 | 15-21 | 15-30 | 35-45 | 40-60 | 30-40 |
Elongation at break | % | 140-400 | 240-350 | 300 | 200-500 | 24-400 | 175 |
E-module | N/mm² | 350-750 | 350-700 | 600 | 1000 | 1000-3000 | 1300 |
Shore grade | - | 55-60 | 58 | 62 | 67-73 | 77-82 | 73-79 |
Oxygen index | Vol.-% | 95 | 95 | 95 | 32-37 | 44-48 | 94 |
Water absorption | % | 0,00 | <0,01 | 0,03 | 0,02 | 0,03 | 0,00 |
Heat conductivity | W/mK | 0,24 | 0,23 | 0,26 | 0,24 | 0,17 | 0,26 |