|
Properties for Perfluoroalkoxy (PFA)
|
|
Property
|
ASTM Test Method
|
Unit
|
Value
|
|
Thermal
|
|
Nominal Melting Point
|
|
D3418
|
°C
|
302–310
|
|
|
(°F)
|
(575–590)
|
|
Coefficient of Linear Thermal Expansion
|
21–100° C
|
D696
|
mm/mm/°C
|
14 x 10–5
|
|
(70–212°F)
|
(in./in./°F)
|
(7.8 x 10–5)
|
|
100–149°C
|
mm/mm/°C
|
18 x 10–5
|
|
(212–300°F)
|
(in./in./°F)
|
(9.8 x 10–5)
|
|
149–208°C
|
mm/mm/°C
|
22 x 10–5
|
|
(300–408°F)
|
(in./in./°F)
|
(12.1 x 10–5)
|
|
Thermal Conductivity
|
|
|
cal/(cm·sec·cm2·°C)
|
6x10-6
|
|
|
|
(BTU/(in·hr·ft2·°F))
|
(1.3)
|
|
Upper Service Temperature
|
|
—
|
°C
|
260
|
|
(°F)
|
(500)
|
|
Flow Rate
|
|
D3307
|
g/10 min
|
2
|
|
Mechanical
|
|
Density
|
23°C (73°F)
|
D792
|
g/cm (lb/in3)
|
2.15 (0.078)
|
|
Tensile Strength
|
23°C (73°F)
|
D3307
|
MPa (psi)
|
28 (4,000)
|
|
250°C (482°F)
|
14 (2,000)
|
|
Specific Gravity
|
|
D792
|
—
|
2.12–2.17
|
|
Tensile Yield Strength
|
23°C (73°F)
|
D3307
|
MPa (psi)
|
15.2 (2,200)
|
|
Ultimate Elongation
|
23°C (73°F)
|
D3307
|
%
|
~300
|
|
250°C (482°F)
|
%
|
~500
|
|
Flexural Modulus
|
23°C (73°F)
|
D790
|
MPa (psi)
|
625 (90,000)
|
|
250°C (482°F)
|
69 (10,000)
|
|
Impace Strength, IZOD
|
|
|
|
No Break
|
|
Coefficient of Friction
|
23°C (73°F)
|
on steel
|
—
|
0.2
|
|
Hardness Durometer
|
|
D2240
|
—
|
D55
|
|
MIT Folding Endurance
|
0.18–0.20 mm
(0.007–0.008 in.)
|
D2176
|
cycles
|
*500,000
|
|
Electrical
|
|
Dielectric Strength, Short Time
|
0.25 mm
(0.010 in.)
|
D149
|
kV/mm
(V/mil)
|
80 (2,000)
|
|
Dielectric Constant, 60–106 Hz
|
|
D150
|
—
|
2.03
|
|
Dissipation Factor, 60–106 Hz
|
|
D150
|
—
|
0.0001
|
|
Volume Resistivity
|
|
D257
|
ohm·cm
|
1018
|
|
General
|
|
Water Absorption, 24 hr
|
|
D570
|
%
|
< 0.03
|
|
Weather and Chemical Resistance
|
|
—
|
—
|
Outstanding
|
|
Refractive Index
|
|
|
|
1.34
|
|
Limiting Oxygen Index
|
|
D2863
|
%
|
> 95
|