PFA (per­flu­o­roalkoxy) [Teflon® PFA 350]


  • General-purpose pre­mium resin
  • Rel­a­tively low flow rate
  • Resis­tant to envi­ron­men­tal stress cracking
  • Sta­ble and creep-resistant at high pro­cess­ing temperatures
  • Chemical-resistant

Com­mon uses

  • Lin­ings for pipe and chem­i­cal pro­cess­ing equipment
  • Roll cov­ers
  • Wire and cable applications
  • Air­craft wire, plenum cable, fire alarm cable and well log­ging cable


Mate­r­ial Specifications

ASTM or UL test Prop­erty Value
D792 Den­sity (lb/in3)/(g/cm3) 0.078 (2.15)
D570 Water absorp­tion, 24 hrs (%) <0.03
D638 Ten­sile strength (psi) 3,600
D638 Ten­sile mod­u­lus (psi) -
D638 Ten­sile elon­ga­tion at break (%) 300
D790 Flex­ural strength (psi) No break
D790 Flex­ural mod­u­lus (psi) 85,000
D785 Hard­ness, Shore D60
D256 Izod notched impact (ft-lb/in) No break
D3418 Melt­ing temp (F°/C°) 582/305
D696 Coef­fi­cient of lin­ear ther­mal
expan­sion (x 10–5 in./in./°F)
D648 Heat deflec­tion temp (F°/C°) at 264 psi -
- Max oper­at­ing temp (F°/C°) 500/260
C177 Ther­mal con­duc­tiv­ity
UL94 Flam­ma­bil­ity rating V-O
D150 Dielec­tric con­stant at 1 MHz 2.1
D150 Dis­si­pa­tion fac­tor at 1 MHz 0.0001
D149 Dielec­tric strength (V/mil)
short time, ⅛” thick
D495 Arc resis­tance (sec) <180
D257 Vol­ume resis­tiv­ity (ohm/cm) at 50% RH >1018

These are typ­i­cal val­ues for ref­er­ence and com­par­i­son only. They should not be used as a basis for design spec­i­fi­ca­tions or qual­ity con­trol. Con­tact us for the man­u­fac­tur­ers’ com­plete mate­r­ial prop­erty datasheets. All val­ues were taken at 73°F (23°C) unless oth­er­wise noted.

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