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Formula: PFA
Form: Disk
Material: Perfluoroalkoxy (Teflon-PFA)
Commodity: Polymers
Teflon PFA Copolymer disks are high-performance fluoropolymer products available in a range of over 75 variations. They provide an exceptional combination of properties including high purity, outstanding chemical resistance, thermal stability, low friction and non-stick characteristics. Teflon PFA Copolymer disks have widespread applications from semiconductor manufacturing to chemical processing equipment. The customizable dimensions and broad chemical compatibility make Goodfellow's Teflon PFA disks ideal for use as gaskets, seals, valve components and other parts requiring the unique performance of fluoropolymers.
Technical Data Sheet Safety Data Sheet Tolerance Properties
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Tolerances

Disk
Thickness ±20%

Material Properties for Polymers

Chemical Resistance
Element Value
Acids - concentrated Excellent
Acids - dilute Excellent
Alcohols Excellent
Alkalis Excellent
Aromatic hydrocarbons Excellent
Greases and Oils Excellent
Halogens Excellent
Ketones Excellent
Electrical Properties
Element Value
Dielectric constant @1kHz 2.05-2.06
Dielectric constant @1MHz 2.05-2.06
Dissipation factor @ 1kHz 0.0001-0.0002
Dissipation factor @ 1MHz 0.0008
Physical Properties
Element Value
Flammability V0
Refractive index 1.35
Limiting oxygen index( % ) 95%
Water absorption( % ) 0.03
Density( gcm⁻³ ) 2.15
Mechanical Properties
Element Value
Elongation at break( % ) 300
Tensile strength( MPa ) 25
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 63-80
Heat-deflection temperature - 1.8MPa( C ) 48-50
Upper working temperature( C ) 260
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.19
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 76-78

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