| TYPICAL
PROPERTIES OF PTFE |
| PROPERTY |
ASTM
Method |
|
| Tensile
Strength, 73 degrees |
D638-52T |
1,500 - 3,000 lb./sq.in |
|
Elongation 73 degrees Fahrenheit |
D638-52T |
100-200% |
| Hardness,
Durometer |
D676-49T |
D50-D60 |
| Coefficient
of linear thermal exansion per 73 - 100 degrees
Fahrenheit |
D696-44 |
5.5
X 10 to the -5 power |
| Thermal
conductivity, 0.18 in |
Cenco-Fitch |
1.7 B.T.U./hr./sq. ft./ degrees
Fahrenheit /in. |
Heat-distortion
temperature
66 lb./sq.in. |
D6488-45T |
250
degrees Fahrenheit |
| Dielectric
strength, short time, 0.080 in. |
D149-44 |
400-500
v/mil |
| Dielectric
constant, 60 cycles - greater then 3,000 megacycles |
D150-54T |
2.1 |
| Dissipation
factor, 60 cycles - greater then 3,000 |
D150-54T |
less
then 0.0003 |
| Water-absortion |
D570-42 |
less
then 0.01% |
| Flamability |
D635-44 |
non-flamable |
| Specific
Gravity |
D792-50 |
2.1
- 2.2 |
| Resistance
to weathering |
– |
Unaffected
by 25 yrs. exposure in Florida |
| Static
or kinetic coefficient |
– |
0.04 |
