PFA tubing has the same advantages as PTFE. The chemical resistance of PFA is comparable to PTFE. PFA is translucent and slightly flexible. PFA has a greater mechanical strength than PTFE. PFA resists aggressive chemicals and high temperature chemical processing. PFA has the lowest levels of metal ions of all Fluoropolymer tubing. PFA is the best for semiconductor piping applications. It is accepted for both liquid reagent and UPDI water handling in advanced processing applications.