PFA

Non Melt

Melt

Perfluoroalkoxy alkanes (PFA) is a copolymer of hexafluoropropylene and perfluoroethers. It was developed after the discovery of PTFE by the same producer (DuPont Co.). PFA has very similar properties to PTFE, though the biggest difference between PTFE and PFA is that PFA is melt processed. This is accomplished through conventional injection molding as well as screw extrusion techniques.

PFA offers the excellent combination of properties characteristic of Fluoropolymers: non-ageing, chemical inertness, exceptional dielectric properties, toughness and flexibility, low coefficient of friction, non-stick characteristics, negligible moisture absorption and excellent weather and UV resistance. PFA has a higher melting point and higher heat resistance than FEP. PFA provides superior creep resistance at high temperatures, excellent low-temperature toughness, and exceptional flame resistance.

Working Temperature Range:    -265deg. C to 260deg. C

Classification:

  1. Extrusion grades
  2. Molding grades
  3. Dispersion grades
  4. Coating grades

Applications:

Grades (ASTM D 3307): Series G1Series G2Series G3Series G4Series G5Series G6Series G7
AppearanceTranslucent granulesTranslucent granulesTranslucent granulesTranslucent granulesTranslucent granulesTranslucent LiquidWhite/Gray Powder
MFR (g/10min)18.1-36.012.1-18.08.1-12.03.1-8.01.1-3.0Solid mass: 52.0-55%, SSG 1.40-1.43, pH 8-9Bulk density 530-750
Molecular WeightLowMediumMediumHighVery HighLowMedium
ApplicationsThin wall insulation (0.1-0.3mm), Small guage wire coating, Tubing’s, Films <=250μm, MonofilamentsMedium to heavy wall coating, Tubing, Hoses, Films, MonofilamentsJacketing and insulation with improved stress resistance, etcGood stress cracking resistance for tubing, molded articles, chemical liningsExcellent stress crack resistance for lining,  diaphragmsGlass fabric coating, release coating formulationsHigh build coatings
Fabrication TechniquesExtrusion, InjectionExtrusion, Injection, blow moldingExtrusion, Injection, blow moldingExtrusion, Injection, compression moldingTransfer, compression moldingGun spray, Dip CoatingElectrostatic coatings, Roto lining, Fluidized bed coating