FKM MEA and GDE Gasket
FKM Gasket for MEA and GDE Flow Cells
Providing airtight sealing while securing electrode materials
Specifications | Gallery | Literature | Related Products | Technical Support
Known for its excellent chemical resistance, FKM gasket is widely used in electrochemical setups, fuel cells or MEA electrolyzers to seal and contain, prevent gas and electrolyte leakage, and maintain compression for effective electrochemical process. FKM gasket offers low gas crossover rates which is vital for hydrogen and oxygen containment in fuel cells. In membrane electrode assembly (MEA) electrolyzers and gas diffusion electrode (GDE) flow cells, FKM gasket is a great choice for tight sealing, and containing electrodes of various thicknesses for its superior compression resistance and dimensional stability under sustained high compression load.
FKM gasket show good resistance to most mineral acids at moderate temperatures though FKM is degradable in alkaline conditions with high concentration (> 10 %), steam, amines, and polar solvents at elevated temperatures via prolonged exposure. FKM also shows excellent resistance to ozone, oxidation, and weathering. Available thicknesses are 0.2 mm, 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.8 mm, 1.0 mm, 1.5 mm, 2 mm and 3 mm with a central window size of 12 mm x 12 mm or 23 mm x 23 mm, and a full gasket dimension of 52 mm x 52 mm, shown below.
For strongly alkaline electrolytes, PTFE or EPDM gaskets are more chemically robust choice.
Acid and Mild Alkaline Stability
Excellent choice to use in PEM and mild-alkaline AEM electrolyzers
Low gas permeability
Supports accurate gas-evolution tracking
Reusability
Strong elastomeric compression recovery supporting repeated use
Precision Cut
Fits well into Ossila MEA Electrolyzers and GDE Flow Cells
Specifications
FKM Gasket Gallery
Literature and Reviews
- J. Jung et al. (2021), Determination of permeation properties of hydrogen gas in sealing rubbers using thermal desorption analysis gas chromatography, Sci. Rep., 11, 17092; DOI: 10.1038/s41598-021-96266-y.
- A. Olabi et al. (2022), Novel Trends in Proton Exchange Membrane Fuel Cells, Energies, 15(14), 4949; DOI: 10.3390/en15144949.
- S. Barwe et al. (2018), Overcoming cathode poisoning from electrolyte impurities in alkaline electrolysis by means of self-healing electrocatalyst films, Nano Energy, 53, 763-768; DOI: 10.1016/j.nanoen.2018.09.045.
- L. Xie et al. (2025), Effects of Cell Configurations and Operating Conditions on Cathode Gas-Phase Products of SO2-Depolarized Electrolyzers, Intl. J. Energy Res., 261641; DOI: 10.1155/er/7261641.
