Nafion™ is a DuPont Trademark for its perfluorosulfonic acid polymer. The polymer has cation exchange properties and has excellent chemical stability similar to Teflon™. Unlike Teflon™ however, it adsorbs and swells in water due to the sulfonic acid terminated side chains on the fluoropolymer backbone

What is Nafion™ used for?

Nafion™ Products

      • Membranes: From thin, high performance fuel cell membranes to tough reinforced membranes for punishing industrial conditions.
    • Dispersions: Nafion™ polymer is dispersed in solvents, used for coatings.
    • Pellets: Nafion™ PFSA Superacid Resin is a bead-form, strongly acidic resin developed for heterogeneous acid catalysis in a wide variety of organic reactions.