PFA

Perfluoroalkoxy

PFA (perfluoroalkoxy) is a sister polymer to FEP and also a derivative of PTFE. It was developed to enhance the properties of FEP to open up new markets.

  • Exhibits all the properties of FEP with the addition of:
  • Extraordinary mechanical strength greatly in excess of FEP.
  • Resists heat up to 250 Deg C in continuous operations.
  • More than 10 times the Flex Life of FEP.
  • High Purity granules available for semi-conductor environments

Trade Names for FEP resins include DuPont Teflon™, Daikin Neoflon™, Dyneon Hostaflon™, Solvay Solexis Hyflon™.

Property Value Units Method
Mechanical Properties
Tensile Strength, 23°C 4060-4500
28-31
psi
MPa
Elongation, 23°C 260-300 %
Flexural Strength, 23°C No break at flexure D 790
Impact Strength, Izod No break
Compressive Stress at 1% deformation, MPa D 695
Yield Strength
At 23°C
1740
12
psi
MPa
Density 2.12-2.17 gm/cu.cm
Thermal Properties
Coefficient of Linear Expansion 20-100°C 12 x 10-5 K-1
Melting Point 253-282 °C
Thermal Conductivity 1.450.209 Btu/hr-.ft-deg F
W/m/deg K
ASTM C 177
Specific Heat 0.25
1.047
Btu/lb/deg F
kJ/Kg/deg K
Service Temperature -250-250 °C
Processing Temperature 370-395 °C
Electrical Properties
Dielectric Strength, short time, 2mm MV m-1
Surface Arc-Resistance >300 (does not track) sec D 495
Volume Resistivity, dry, @ 50% RH >1018 ohm-cm D 257
Surface Resistivity, @ 100% RH 1016 ohm/sq.
Dielectric Constant 1kHz to 1GHz 2.06 ε D150-81
Dielectric Strength 78.8* kV mm-1 D149
Dissipation Factor @ 60 Hz – 1 MHz <0.0001 D150-81
Other Properties
Refractive Index 1.344 nD25 D 542
Water Absorption <0.1 % D570-81
Flame Rating+ VE-0 UL-94
Limiting Oxygen Index 95 % Oxygen D 2863
Resistance to Weathering Excellent
Specific Gravity 2.12-2.17 D792-66 (1979)
Static coefficient of friction 0.05-0.08

Case Study

Xerox

Within Xerox photocopiers, in common with most other photocopier manufacturers, there are numerous fluoroplastic components, including fuser cans...

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