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Cation Exchange Membranes

Cation Exchange Membranes are proton-conductive polymer film, also known as electrolyte or ionomer, that allow only protons to cross-over (cation exchange), the key function of proton exchange membrane fuel cells and water electrolyzers.

Basically, cation exchange membranes perform as a separator and solid electrolyte in a variety of electrochemical cells that require the membrane to selectively transport cations across the cell junction.  The polymer is chemically resistant and durable.

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Nafion™ N438, Teflon™ Fabric Reinforced
Chemours (formerly DuPont) Nafion™ N438 is a new product in the 400 series family. This membrane ..

Fumasep FKS-50
Fumasep FKS-50 is a non-reinforced Cation Exchange Membrane (CEM) with very low resistance, high ..
From $16.00
Based on 1 reviews.

Nafion™ Membrane Variety Kit
Our Nafion™ Membrane Variety Kits consist of one piece of each of the following Nafion™ membranes..
From $44.00
Based on 4 reviews.

Fumasep FKE-50
Fumasep FKE-50 is a non-reinforced Cation Exchange Membrane (CEM) with very low resistance, high ..
From $17.00

Fumasep FKD-PK-75
Fumasep FKD-PK-75 is a PK reinforced Cation Exchange Membrane (CEM) with low resistance, high sel..
From $21.00

Fumapem F‐930
Fumapem F-930 membrane is a Long Side Chain - Perfluorinated Sulfonic Acid (LSC-PFSA) cation exch..
From $18.00
Based on 1 reviews.

Fumapem F-950
Fumapem F-950 membrane is a Long Side Chain - Per-Fluorinated Sulfonic Acid (LSC-PFSA) cation exc..
From $22.00

Fumasep F-10120
Fumasep F-10120 is a non-reinforced Cation Exchange Membrane (CEM) with low resistance, high mech..
From $89.00

Fumapem F-14100
Fumapem F-14100 membrane is a non-reinforced Per-Fluorinated Sulfonic Acid (PFSA) / PTFE copolyme..
$246.00

Fumasep F-1075-PK
Fumasep F-1075-PK is a Perfluorinated PK reinforced Cation Exchange Membrane (CEM) with low resis..
$345.00

Fumasep F-10120-PK
Fumasep F-10120-PK is a PK reinforced Cation Exchange Membrane (CEM) with low resistance, high me..
From $39.00

Fumasep F-10150-PF
Fumasep F-10150-PF is a Perfluorinated PFA reinforced Cation Exchange Membrane (CEM) with low res..

Fumapem F-930-RFS
Fumapem F-930-RFS membrane is a perflourinated cation exchange membrane with low resistance, high..

Fumasep F-930-RFD
Fumasep F-930-RFD membrane is a perflourinated cation exchange membrane with low resistance, high..

Fumasep F-1850
Fumasep F-1850 membrane is a flourinated cation exchange membrane with low resistance, high block..
From $20.00
Based on 1 reviews.