• Nafion™ NR212 Membrane

Nafion™ membranes are often used to separate the anodes from the cathodes in electrolysis reactors or fuel cells. The thickness of the cation exchange membrane makes Nafion™ 212 ideal for hydrogen fuel cells. Nafion™ 212 is 50.8 µm thick.

Chemours® (formerly DuPont®) Nafion™ 212 membranes are unreinforced films based on chemically stabilized perfluorosulfonic acid / PTFE copolymer in its acid form (H+). The physical properties of the chemically stabilized membranes remain the same. Compared to the unstabilized polymer, these have a significantly lower fluoride ion release. That means improved chemical resistance. Nafion ™ PFSA membranes are widely used for proton exchange membranes (PAM) in fuel cells and electrolysis reactors. The membrane acts as a separator and solid electrolyte in a large number of electrochemical cells. Typically, such cells require that the membrane selectively transport cations across the cell boundary. The polymer is chemically resistant and durable. We give a discount when purchasing 5, 10 or 20 pieces.

Discounts are available at 5, 10 and 20 sheets per order.

Membrane Properties
Thickness 50.8 microns (5 mil)
Weight (g / m²) 250
Tensile Strenght - max. (MPa) 32 (MD), 32 (TD) - method: ASTM D 882
Non-Standard-Module (MPa) 266 (MD), 251 (TD) - method: ASTM D 882
Elongation at Break (%) 225 (MD), 310 (TD) - method: ASTM D 882
Hydrogen crossover (ml/minxcm²)
< 0.010
Specific Weight (23 °C, 50% RH) 1,97
Available Acid Capacity (meq / g) 0.92 min
Total Acid Capacity (meq / g) 0.95 bis 1.01
Membranolytic Properties
Water Content (% Water) 5.0±3.0% - method: ASTM D 570
Swelling (% Water) 50.0±5.0% - Methode: ASTM D 570
Linear Expansion % Increase - 50% RH, 23 °C 10.0 - method: ASTM D 756
Linear Expansion % Increase - 50% RH, 23 °C to 100 °C 15.0 - method: ASTM D 756

We offer different versions of Nafion membranes. Please ask for an quote.

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Nafion™ NR212 Membrane

  • Brands DuPont
  • Product Code: FE010753
  • Availability: In Stock
  • 65.45€

  • Ex Tax: 55.00€

  • 5 or more 59.50€
  • 10 or more 53.55€
  • 20 or more 47.60€

Available Options


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Tags: Nafion, perfluorosulfonic acid, PTFE, membrane, cation exchange membrane, proton exchange membrane, PFSA, DuPont, Chemours