PFA Perflouroalkoxy PFA is a copolymer, manufactured from polytetrefluoroethylene (PTFE) and perfluorovinylmethylether. PFA is together with  PTFE known under the name teflon. PFA is a modified product of PTFE with similar properties, but harder, with higher  firmness and processability in the melted aggregate state. Properties Overview name perfluoroalkoxy classification - copolymer - thermoplastic Manufacturing source materials - PTFE C₂F₄ - Perfluorovinylmethylether production  - extrusion - sintering Properties aggregate state solid general - good antiadhesion properties - low heat conductivity - excellent weather stability - good electric isolation - high chemical resistance - wide temperature range of applicability - hardly inflammable - very small friction resistance Mechanical density 2,2 g/cm³ hardness D-60 tensile strength 28 MPa breaking elongation 300 % friction coefficient 0,25 Electrical dielectric constant 2,1 (10³ - 10⁶ Hz) specific resistance   > 10⁴ Ω * mm dielectric strength ~ 65 kV/mm Thermal melting temperature 300 °C heat capacity heat conductivity combustion heat   operation temperature -60 to +70 °C Optical refractive index Application • often in labs as storrage box for chemical substances • quad ring for aggressive chemical materials • armature • filter • for expensive pumps and control valves Copyright © 2010 polyneub.com  - Matthias Neuber - about  - general terms and conditions Manufacturer Service Provider