Aquivion® E98-15S is a chemically-stabilized (denoted by S-suffix) perfluorosulfonic acid ionomer membrane that exhibits an Equivalent Weight (EW) of 980 g/eq. Nominal thickness is 150 microns. Aquivion® ionomer membranes are melt-extruded products based on the unique Short Side Chain copolymer of Tetrafluoroethylene (TFE) and Sulfonyl Fluoride Vinyl Ether (SFVE) F2C=CF-O-CF2CF2-SO2F produced by Solvay. They are available in acid form and feature a lower Equivalent Weight (EW) than most commercial proton exchange membranes. The unique Short Side Chain copolymer allows higher crystallinity, improved mechanical properties and better proton conductivity. Typical applications include PEM fuel cells, water electrolyzers, separators for hydrogen or redox flow batteries, and pervaporation or gas humidification systems. Please visit for more information.


  • Global Business Unit
    Specialty Polymers
  • Brand


Segments Applications
Water Treatment Drinking Water Treatment

Chemical categories

Chemical category Chemical family Chemical product
Specialty Polymers Perfluorosulfonic acid Perfluorosulfonic acid

Region of commercial availability

  • Asia / Pacific
  • Europe / Middle East / Africa
  • North America
Not available in Middle East/Africa

Download documentation for Aquivion® E98-15S