PFA also meets FDA 21CFR.177.1550.
PFA Rod and PFA SheetPerFluoroAlkoxy (PFA) offers similar properties to FEP, but PFA is preferred when extended service is required in hostile environments involving chemical, thermal, and mechanical stress.000 Thick,12 X 12 PFA offers high melt strength, stability at high processing temperatures, excellent crack and stress resistance, a low coefficient of friction, and more than 10 times the Flex life of FEP..Natural PFA Sheet,1.