Full Name
Perfluoroalkoxy alkane
PFA (PerFluoroAlkoxy) is similar to FEP (Polyfluoroethylenepropylene) in that PFA is a type of fluoropolymer that is similar to PTFE. PTFE has a higher temperature range but FEP/PFA has better mechanical properties than PTFE. FEP is considered to be more of a premium resin when working in extremely hostile environments where extended service requires resistance to thermal and mechanical stress.
Offering more than 10x the flex life of FEP, PFA will offer greater stability at high temperatures while reducing stress related breakdown and maintaining a low coefficient of friction.
Density
2.12 - 2.17 g/cc
Dielectric Strength
30.0 - 40.0 kV/mm
Max. Service Temperature, Air
260 °C
Tensile Strength, Ultimate
24.8 MPa
Elongation at Break
300 %
Electrical Resistivity
1.00e+17 ohm-cm
CTE, linear
120 - 200 µm/m-°C
Thermal Conductivity
0.240 W/m-K
Flammability, UL94
V-0