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
|