PTFE MEA and GDE Gasket
PTFE Gasket for MEA and GDE Flow Cells (Pack of 5)
Providing airtight sealing while securing electrode materials
Specifications | Gallery | Literature | Related Products | Technical Support
Chemically inert PTFE gaskets designed for membrane electrode assembly (MEA) electrolyzers and gas diffusion electrode (GDE) flow cells provide sealing and containment as leak barrier and electrical insulator with precise mechanical compression control. Available in various thicknesses and sizes, PTFE gaskets adjust the channel thickness in MEA and GDE which directly controls ohmic resistance and concentration boundary layer behaviour. Thinner gasket reduces the distance between the cathode and anode to drop the ohmic resistance or vice versa.
PTFE gaskets are inert to reactant gases, acids and alkaline environments though there are degradable in strong acid/alkaline at elevated temperatures through prolonged uses. The gaskets maintain gas and liquid tight seals in H-cells, flow cells, and photoelectrochemical setups under variable pressures and temperatures up to 260°C. They also act as a mechanical stop or shim to prevent over-compression and physical damage to the fragile MEA and GDE. PTFE gaskets also prevent short circuits between bipolar plates due to PTFE’s high dielectric strength.
Thicknesses available of the PTFE gaskets are 0.1 mm, 0.15 mm, 0.20 mm, 0.25 mm, 0.30 mm, 0.35 mm, 0.40 mm, 0.45 mm and 0.50 mm with 2 central window sizes of 12mm x 12 mm, and 23 mm x 23 mm, and a full gasket dimension of 52 mm x 52 mm (shown below).
FKM, Silicon, and EPDM are better compressible gasket choices, if fits your application.
Wide pH Stability
Suitable to use with all kind of electrolyzers including PEM, AEM, and BPM.
Low gas permeability
Supports accurate gas-evolution tracking
Compression Control
Safe-guard electrodes from over-compression
Precision Cut
Gasket dimensions best suited for Ossila Electrolyzers and GFE Flow Cells
Specifications
PTFE Gasket Gallery
Literature and Reviews
- Y. Doh et al. (2025), Flooding-resistant gas diffusion electrode design for MEA-type CO2 electrolyzer, J. CO2 Util., 98, 103155; DOI: 10.1016/j.jcou.2025.103155.
- M. Zhang et al. (2026), Surface-immobilized cross-linking tetraalkylammonium cations networks mitigate hydrogen evolution for pure acidic CO2 reduction in proton-exchange membrane electrolyzers, J. Energy Chem., 112, 90-96; DOI: 10.1016/j.jechem.2025.08.050.
- Y. Wang et al. (2026), Strongly-Anchored Ionomer-Free Anode Catalyst Layer Fabricated via Joule Heating Achieves Efficient Electron/Mass Transfer for Acidic Water Electrolysis, Carbon Energy, e70330; DOI: doi.org/10.1002/cey2.70330.
