FAA-3-PK-75 Anion Exchange Membrane

Sitting between the unreinforced FAA-3-50 and the heavy-duty PK-130, the FAA-3-PK-75 gives CO2 electrolysis researchers a balance of conductivity and mechanical toughness in a 60-90 µm reinforced format. Area resistance below 2 Ω cm² keeps voltage losses lower than the thicker PK-130 variant, while the polyketone reinforcement still delivers tensile strength above 40 MPa and a burst rating above 3 bar. Like its PK-reinforced sibling, it reaches full performance after a defined salt-solution pretreatment between stabilizing meshes.

• Balanced Performance: <2 Ω cm² area resistance with reinforced mechanical strength, positioned between the FAA-3-50 and PK-130.
• Reinforced Construction: PK (polyketone) mesh raises tensile strength above 40 MPa versus unreinforced alternatives.
• High Selectivity: >92% selectivity limits ion crossover during CO2 electrolysis and related studies.
• Verified Integrity: Burst test >3 bar and <3% swelling support stable multi-compartment operation.
• Defined Pretreatment: 72-hour soak in 0.5 M NaCl between stabilizing meshes/spacers before assembly.
• Cell-Ready Formats: Standard sheets or pre-cut for Redox Flow’s X-Stack, S-Stack, and 3-compartment X-Cell hardware.