|
Properties |
ATM
Method |
Units |
Virgin PTFE |
Reprocessed
PTFE |
25% Glass
PTFE |
| Specific Gravity |
D792 |
|
2.14-2.20 |
2.15-2.20 |
220-230 |
| Tensile Strength |
D638 |
PSI |
1500-3500 |
1500-2400 |
2000-3000 |
| Elongation |
D638 |
% |
250-350 |
75-200 |
100-260 |
| Hardness |
D1700 |
Durometer "D" |
50-60 |
|
55-65 |
Deformation %
730F, 1500 psi, 24 hours |
D621 |
|
4-8 |
|
1.73 |
Deformation %
1000F, 1500 psi, 24 hours |
D621 |
|
10-18 |
|
1.91 |
Deformation %
2000F, 1500 psi, 24 hours |
D621 |
|
20-25 |
|
4.57 |
Impact Strength,
Izod
7300F Average
1700F Average |
D256 |
Ft./Lb./In. |
3.00
6.00 |
|
2.54
3.69 |
| Water Absorption |
D570 |
% |
0.001 |
|
0.013 |
Coefficient of Friction
(Static) 730F |
*3 |
|
0.04 |
|
0.085 |
Dielectric Constant
(100 CPS) |
D150 |
|
2.00 |
2.26 |
2.4 |
| Dielectric Strength (4)
(air) |
D257 |
Volts |
1000 |
450 |
235 |
| Coefficient of Thermal
Expansion 730F |
D696 |
In./In./Ft. |
5.5 x 10.3 |
|
2.75 x 10.3 |
| Coefficient of Thermal
Conductivity |
*5 |
Btu/hr/ftz |
1.7 |
|
3.12 |
| PV at 900 ft./min |
|
|
2500 |
|
15,000 |
| Color |
*6 |
|
white |
off white |
brownish white |