Properties Of Perfluoro Alkoxy (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)	6×10-6
			(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)
Impact 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