About Fumasep FAS-PET-75 Anion Exchange Membrane (AEM)

Brand: FuMA-Tech
Product Code: 5041615

Fumasep FAS-PET-75 is a PET reinforced Anion Exchange Membrane (AEM) with low resistance, high selectivity, high mechanical stability, and high stability in pH neutral and acidic environments. The polymer backbone for this AEM is based on a hydrocarbon polymer material.

Fumasep FAS-PET-75 membrane comes in either a 10cm x 10cm or 20cm x 30cm size sheet that is delivered in a dry brown-foil form.

Fumatech membranes are highly sensitive to differences in humidity andmoisture content. Therefore the membranes can vary +/- 0.5cm from the original cut sizes. Also due to this sensitivity the manufacturer expects wrinkles to form, however soaking the membranes in deionized water will return the membranes to the full size planar state according to the manufacturer.

Fumasep FAS-PET-75 Features:

  Applications :Electrodialys is for demineralisation, desalination, acid recovery applications and others.
Anion Exchange Membrane
Stability Rang (pH) at 25 Deg C: 0 - 8
Thickness: 70 - 80 micrometers (2.76 - 3.15 mil)
Sizes: 10cm x 10cm, 20cm x 30cm

Handling:

Keep membrane package closed / sealed when unused. Store, handle and process the membrane in a clean and dust-free area. Use only new and sharp knives or blades, when cutting the membrane. Always wear protective gloves when handling the membrane. Handle with care, be sure not to puncture, crease or scratch the membrane, otherwise leaks will occur. All surfaces in contact with the membrane during handling, inspection, storage and mounting must be smooth and free of sharp projections.

 Storage:

Dry Form: The membrane can be stored dry for an unlimited amount of time. However, the membrane has to be conditioned (washed and rinsed) prior touse.

Wet Form: Storage for short and medium time scale (hours up to several weeks) may be done in unsealed containers in 0.5 - 1.5 wt% NaCl solution or comparable neutral pH electrolytes.  For storage over a longertime period a sealed container is recommended using aforesaid electrolyte with ca. 100 ppm biocide (NaN3) to avoid biological fouling.

 Pre-Treatment and Conditioning:

The membrane is delivered in bromide form and dry form. Depending on application and cell design, assembling is possible in dry form (without pretreatment) or wet form. For optimum performance it is recommended to rinse the membrane in NaCl solution (e.g. 0.5 M NaCl solution at 25C for 24 hrs) to remove any additive from the membrane. Place the membrane sample between stabilizing meshes / spacers in order to avoid curling. Do not let the membrane dry out since micro-cracks may likely occur during shrinkage.

If you have any concerns about storage, chemical stability and pretreatment before proceeding, please feel free to contact us for further information.

Outstanding Ion Selectivity and Performance

Fumasep FAS-PET-75 AEM is engineered to provide high ion exchange efficiency and elevated permselectivity greater than 90%, ensuring reliable separation processes critical in electrodialysis and water treatment applications. The included PET support ensures durability while maintaining flexibility for easier handling during installation.


Optimal for Diverse Electrochemical Applications

This advanced membrane is perfectly suited for electrodialysis, fuel cells, water electrolyzers, and similar devices. Its robust chemical composition, reinforced structure, and high ion exchange capacity allow for stable operation across various setups and environments, making it a versatile choice for industrial and research use.


Ease of Integration and Longevity

With its flat sheet design and transparent appearance, Fumasep FAS-PET-75 is simple to cut and install within custom systems. Its resistance to a broad pH window (2-10), operational temperature up to 40C, and chemical stability contribute to reliable, long-term usage with minimal maintenance.