| Thermal |
Properties |
ASTM |
PTFE |
PFA |
FEP |
ETFE |
| Maximum Temp. |
°C |
260° |
260° |
200° |
150° |
| Minimum Temp. |
°C |
-240° |
-200° |
-240° |
-190° |
| Melting point |
°C |
327° |
305° |
260° |
267° |
| Flame Rating |
UL 94 |
V-O |
V-O |
V-O |
V-O |
| Mechanical |
Density(g/cm3) |
D-792 |
2.18 |
2.15 |
2.15 |
1.74 |
| Tensile Strength (psi) |
D-638 |
2000-7000 |
4000-4500 |
2800-5000 |
6100-6800 |
| Hardness shore D |
D-636 |
50-65 |
55-60 |
55 |
75 |
| Shrink Ratio |
/ |
4:1 or 1.7:1 |
2:1 |
1.3:1 or 1.6:1 |
|
| Electrical |
Dielectric Strength v/mm |
D-149 |
1400 |
2000 |
2000 |
1600 |
| Volume Resistivity Ω·cm |
D-257 |
1.0×10,18 |
1.0×10,18 |
1.0×10,18 |
1.0×10,16 |
Unit exchange:
- 1volts/mil=0.001kV/0.0254mm=0.03937kV/mm
- 1kV/mm=1/0.03937volts/mil=25.40volts/mil
- 1 Mpa= 145.0377 psi
