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™.

PropertyValueUnitsMethod
Mechanical Properties
Tensile Strength, 23°C4060-4500
28-31
psi
MPa
Elongation, 23°C260-300%
Flexural Strength, 23°CNo break at flexureD 790
Impact Strength, IzodNo break
Compressive Stress at 1% deformation,MPaD 695
Yield Strength
At 23°C
1740
12
psi
MPa
Density2.12-2.17gm/cu.cm
Thermal Properties
Coefficient of Linear Expansion 20-100°C12 x 10-5K-1
Melting Point253-282°C
Thermal Conductivity1.450.209Btu/hr-.ft-deg F
W/m/deg K
ASTM C 177
Specific Heat0.25
1.047
Btu/lb/deg F
kJ/Kg/deg K
Service Temperature-250-250°C
Processing Temperature370-395°C
Electrical Properties
Dielectric Strength, short time, 2mmMV m-1
Surface Arc-Resistance>300 (does not track)secD 495
Volume Resistivity, dry, @ 50% RH>1018ohm-cmD 257
Surface Resistivity, @ 100% RH1016ohm/sq.
Dielectric Constant 1kHz to 1GHz2.06εD150-81
Dielectric Strength78.8*kV mm-1D149
Dissipation Factor @ 60 Hz – 1 MHz<0.0001D150-81
Other Properties
Refractive Index1.344nD25D 542
Water Absorption<0.1%D570-81
Flame Rating+VE-0UL-94
Limiting Oxygen Index95% OxygenD 2863
Resistance to WeatheringExcellent
Specific Gravity2.12-2.17D792-66 (1979)
Static coefficient of friction0.05-0.08

Case Study

Xerox

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

View Case Study