Nafion PFSA membranes are widely used for Proton Exchange Membrane (PEM) fuel cells and water electrolyzers. NafionPFSA MembranesN-117perfluorosulfonic acid polymerDescriptionDupont Nafion PFSA membranes are non-reinforced films based on Nafion PFS Apolymer, a perfluorosulfonic acid/PTFE copolymer in the acid (H+) form. Nafion PFSA membranes are widely used for Proton Exchange Membrane (PEM) fuel ...