Fumasep FAD-55 is a non-reinforced Anion Exchange Membrane (AEM) designed for acid diffusion dialysis applications. It features low area resistance, high acid permeability, good mechanical stability, and excellent durability in acidic environments. The polymer backbone is based on a proprietary hydrocarbon resin. This membrane is delivered in dry form, laminated on a transparent PET support foil, and must be handled with care.
Fumasep FAD-PET-75 is a PET-reinforced AEM, offering enhanced mechanical strength while maintaining excellent ion transport and chemical resistance. It is especially suited for high-stress environments or continuous industrial operations.
Download：
fumasep FAD-55 (dry form) Technical Data Sheet.pdf
fumasep FAD-PET-75 (dry form) Technical Data Sheet.pdf
| Application | FAD-55 | FAD-PET-75 |
|---|---|---|
| Diffusion dialysis (acid recovery) | ✅ Excellent | ✅ Excellent |
| Recovery of sulfuric acid (H₂SO₄) | ✅ | ✅ |
| Acid waste treatment | ✅ | ✅ |
| Electrodialysis & acid separation | ⚠ Case-by-case | ✅ Recommended |
| Lab-scale testing / Research / Education | ✅ Easy-to-use | ✅ |
| Industrial installations (high pressure) | ❌ Not advised | ✅ Reinforced |
| Property | FAD-55 | FAD-PET-75 |
|---|---|---|
| Type | Anion Exchange Membrane (AEM) | Anion Exchange Membrane (AEM) |
| Thickness | 50 – 60 µm | 70 – 80 µm |
| Reinforcement | None | PET |
| Appearance | Light brown | Light brown |
| Backing Foil | PET (removable) | None |
| Delivery Form | Dry | Wet |
| Counter Ion | Br⁻ (Bromide) | Cl⁻ (Chloride) |
| Area Resistance (Cl⁻ form) | 0.20 – 0.25 Ω·cm² | 0.25 – 0.50 Ω·cm² |
| Specific Conductivity (Cl⁻ form) | 25 – 30 mS·cm⁻¹ | 15 – 25 mS·cm⁻¹ |
| Selectivity | ~85% | 91 – 95% |
| Proton Transfer Rate | 8000 – 10000 µmol·min⁻¹·cm⁻² | 2000 – 5000 µmol·min⁻¹·cm⁻² |
| Ion Exchange Capacity (IEC) | 2.0 – 2.5 meq·g⁻¹ | 2.0 – 2.3 meq·g⁻¹ |
| Water Uptake at 25°C | 58 wt% | 20 – 30 wt% |
| Dimensional Swelling in Water | 4 – 8 % | 0 – 2 % |
| Modulus (Non-standard, dry) | 700 – 900 MPa | 1200 – 2000 MPa |
| Max Tensile Strength | 24 – 26 MPa | 40 – 70 MPa |
| Elongation at Break | >10% | 15 – 50% |
| Bubble Point (Water, 25°C) | 2.5 bar | >3 bar |
Dry Form: Unlimited shelf life if sealed and stored in a cool, dry, dust-free environment.
Wet Form: Can be stored in 0.5–1.5 wt% NaCl solution for short periods (hours to weeks). For longer storage, add a biocide (e.g., 100 ppm NaN₃ or 2% Na₂SO₃) in a sealed container to prevent biological contamination.
Avoid drying out the membrane once soaked, as shrinkage and micro-cracks may occur.
Always wear gloves when handling membranes to avoid contamination or mechanical damage.
Cut membranes using sharp, clean blades only.
For FAD-55, peel off the transparent PET foil carefully before use.
Membranes may wrinkle due to dry conditions. Soak in deionized water to relax and return to planar form.
Pretreatment (Recommended):
Soak in 0.5 M NaCl solution at 25°C for 24–48 hours.
Change the solution several times to remove additives.
Use mesh supports to prevent curling or folding during soaking.
Do not allow membrane to dry once wetted.
Q1: Is the membrane reusable?
A1: Yes. With proper handling and chemical stability, FAD membranes can be used multiple times depending on the application and cleaning procedures.
Q2: Can these membranes be cut?
A2: Yes, they can be manually cut to fit your system size. Use sharp blades and avoid tearing.
Q3: Why are there wrinkles or dimensional changes in the membrane?
A3: Fumasep membranes are sensitive to humidity. Wrinkles may appear in dry state but will disappear after soaking in DI water.
Q4: Which one should I choose between FAD-55 and FAD-PET-75?
A4: Choose FAD-55 for lab-scale, low-pressure systems. Choose FAD-PET-75 for high-strength industrial applications or where membrane reinforcement is needed.
Q5: Can I use these membranes in organic solvents?
A5: No. These membranes are optimized for aqueous systems only. Organic solvents (e.g., DMF, THF, ethyl acetate) will degrade the polymer matrix rapidly.
Q6: What is the swelling behavior?
A6: FAD-55 swells more significantly in water (up to 8%) due to no reinforcement. FAD-PET-75 remains dimensionally stable due to the PET layer.
Welcome to cite our materials in your papers
Fumasep FAD-PET-75, a PET (Polyester) reinforced anion exchange membrane (AEM), was obtained from SCI Materials Hub.
FuMA-Tech Anion exchange membrane series in SCI Materials Hub
| FuMA-Tech AEM Series | Thickness (μm) | pH | Temperature (°C) | Counter ion | Reinforcement |
| AMI-7001S | 450 | 1-10 | 90°C | -- | None |
| Fumasep FAA-3-20 | 20 | 1-12 | 25 - 50°C | Br- | None |
| Fumasep FAA-3-PE-30 | 26-34 | -- | -- | Br- | PE |
| Fumapem FAA-3-PE-30 | 20-30 | 1-12 | 25 - 50°C | Br- | PE |
| Fumasep FAA-3-50 | 50 | 0-14 | 25 - 50°C | Br- | None |
| Fumapem FAA-3-50 | 50 | 1-12 | 25 - 50°C | Br- | None |
| Fumasep FAA-3-PK-75 | 75 | 0-14 | 25 - 50°C | Br- | PK |
| Fumasep FAA-3-PK-130 | 130 | 0-14 | 25 - 50°C | Br- | PK |
| Fumasep FAAM-15 | 15 | 6-12 M KOH | 25 - 100°C | None | None |
| Fumasep FAAM-20 | 18-22 | 6-12 M KOH | 25 - 100°C | None | None |
| Fumasep FAAM-40 | 35-45 | 6-12 M KOH | 25 - 100°C | None | None |
| Fumasep FAAM-75-PK | 60-80 | 6-12 M KOH | 25 - 100°C | None | None |
| Fumasep FAB-PK-130 | 130 | 0-14 | 25 - 50°C | Br- | PK |
| Fumasep FAD-55 | 55 | 1-9 | 25 - 50°C | Br- | None |
| Fumasep FAD-PET-75 | 75 | 1-9 | 25 - 50°C | Br- | PET |
| Fumasep FAP-450 | 50 | <4 | 25 - 50°C | None | None |
| Fumasep FAPQ-330 | 30 | 1-9 | 25 - 50°C | Cl- / MeOSO3- | None |
| Fumasep FAS-30 | 30 | 1-12 | 25 - 50°C | Br- | None |
| Fumasep FAS-50 | 50 | 1-14 | 25 - 50°C | Br- | None |
| Fumasep FAS-PET-75 | 75 | 0-9 | 25 - 50°C | Br- | PET |
| Fumasep FAS-PET-130 | 130 | 0-9 | 25 - 50°C | Br- | PET |
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| Model | 10×10 cm | 20×20 cm | 20×30 cm |
|---|---|---|---|
| Fumasep FAD-55 | $24 | $59 | $69 |
| Fumasep FAD-PET-75 | $26 | $69 | $79 |
📏 Note: All membranes are manually cut; due to moisture sensitivity, final dimensions may vary by ±0.5 cm
⚠️ Notice: These products are for industrial/lab use only and not certified for drinking water applications.
Partial references citing our materials (from Google Scholar)
Carbon Dioxide Reduction
1. ACS Nano Strain Relaxation in Metal Alloy Catalysts Steers the Product Selectivity of Electrocatalytic CO2 Reduction
The bipolar membrane (Fumasep FBM) in this paper was purchased from SCI Materials Hub, which was used in rechargeable Zn-CO2 battery tests. The authors reported a strain relaxation strategy to determine lattice strains in bimetal MNi alloys (M = Pd, Ag, and Au) and realized an outstanding CO2-to-CO Faradaic efficiency of 96.6% with outstanding activity and durability toward a Zn-CO2 battery.
2. Front. Chem. Boosting Electrochemical Carbon Dioxide Reduction on Atomically Dispersed Nickel Catalyst
In this paper, Vulcan XC-72R was purchased from SCI Materials Hub. Vulcan XC 72R carbon is the most common catalyst support used in the anode and cathode electrodes of Polymer Electrolyte Membrane Fuel Cells (PEMFC), Direct Methanol Fuel Cells (DMFC), Alkaline Fuel Cells (AFC), Microbial Fuel Cells (MFC), Phosphoric Acid Fuel Cells (PAFC), and many more!
3. Adv. Mater. Partially Nitrided Ni Nanoclusters Achieve Energy-Efficient Electrocatalytic CO2 Reduction to CO at Ultralow Overpotential
An AEM membrane (Sustainion X37-50 Grade RT, purchased from SCI Materials Hub) was activated in 1 M KOH for 24 h, washed with ultra-purity water prior to use.
4. Adv. Funct. Mater. Nanoconfined Molecular Catalysts in Integrated Gas Diffusion Electrodes for High-Current-Density CO2 Electroreduction
In this paper (Supporting Information), an anion exchanged membrane (Fumasep FAB-PK-130 obtained from SCI Materials Hub (www.scimaterials.cn)) was used to separate the catholyte and anolyte chambers.
SCI Materials Hub: we also recommend our Fumasep FAB-PK-75 for the use in a flow cell.
5. Appl. Catal. B Efficient utilization of nickel single atoms for CO2 electroreduction by constructing 3D interconnected nitrogen-doped carbon tube network
In this paper, the Nafion 117 membrane was obtained from SCI Materials Hub.
In this paper, Proton exchange membrane (Nafion 117), Nafion D520, and Toray 060 carbon paper were purchased from SCI Materials Hub.
7. National Science Review Confinement of ionomer for electrocatalytic CO2 reduction reaction via efficient mass transfer pathways
An anion exchange membrane (PiperION-A15-HCO3) was obtained from SCI Materials Hub.
8. Catalysis Communications Facilitating CO2 electroreduction to C2H4 through facile regulating {100} & {111} grain boundary of Cu2O
Carbon paper (TGPH060), membrane solution (Nafion D520), and ionic membrane (Nafion N117) were obtained from Wuhu Eryi Material Technology Co., Ltd (a company under SCI Materials Hub).
Batteries
1. J. Mater. Chem. A Blocking polysulfides with a Janus Fe3C/N-CNF@RGO electrode via physiochemical confinement and catalytic conversion for high-performance lithium–sulfur batteries
Graphene oxide (GO) in this paper was obtained from SCI Materials Hub. The authors introduced a Janus Fe3C/N-CNF@RGO electrode consisting of 1D Fe3C decorated N-doped carbon nanofibers (Fe3C/N-CNFs) side and 2D reduced graphene oxide (RGO) side as the free-standing carrier of Li2S6 catholyte to improve the overall electrochemical performance of Li-S batteries.
This paper used more than 10 kinds of materials from SCI Materials Hub and the authors gave detailed properity comparsion.
The commercial IEMs of Fumasep FAB-PK-130 and Nafion N117 were obtained from SCI Materials Hub.
Gas diffusion layers of GDL340 (CeTech) and SGL39BC (Sigracet) and Nafion dispersion (Nafion D520) were obtained from SCI Materials Hub.
Zn foil (100 mm thickness) and Zn powder were obtained from the SCI Materials Hub.
Commercial 20% Pt/C, 40% Pt/C and IrO2 catalysts were also obtained from SCI Materials Hub.
3. Journal of Energy Chemistry Vanadium oxide nanospheres encapsulated in N-doped carbon nanofibers with morphology and defect dual-engineering toward advanced aqueous zinc-ion batteries
In this paper, carbon cloth (W0S1011) was obtained from SCI Materials Hub. The flexible carbon cloth matrix guaranteed the stabilization of the electrode and improved the conductivity of the cathode.
4. Energy Storage Materials Defect-abundant commercializable 3D carbon papers for fabricating composite Li anode with high loading and long life
The 3D carbon paper (TGPH060 raw paper) were purchased from SCI Materials Hub.
5. Nanomaterials A Stable Rechargeable Aqueous Zn–Air Battery Enabled by Heterogeneous MoS2 Cathode Catalysts
Nafion D520 (5 wt%), and carbon paper (GDL340) were received from SCI-Materials-Hub.
Carbon cloth (W0S1011) and other electrochemical consumables required for air cathode were provided by SCI Materials Hub.
Oxygen Reduction Reaction
1. J. Chem. Eng. Superior Efficiency Hydrogen Peroxide Production in Acidic Media through Epoxy Group Adjacent to Co-O/C Active Centers on Carbon Black
In this paper, Vulcan XC 72 carbon black, ion membrane (Nafion N115, 127 μL), Nafion solution (D520, 5 wt%), and carbon paper (AvCarb GDS 2230 and Spectracarb 2050A-1050) were purchased from SCI Materials Hub.
2. Journal of Colloid and Interface Science Gaining insight into the impact of electronic property and interface electrostatic field on ORR kinetics in alloy engineering via theoretical prognostication and experimental validation
The 20 wt% Pt3M (M = Cr, Co, Cu, Pd, Sn, and Ir) were purchased from SCI Materials Hub. This work places emphasis on the kinetics of the ORR concerning Pt3M (M = Cr, Co, Cu, Pd, Sn, and Ir) catalysts, and integrates theoretical prognostication and experimental validation to illuminate the fundamental principles of alloy engineering.
Water Electrolysis
1. International Journal of Hydrogen Energy Gold as an efficient hydrogen isotope separation catalyst in proton exchange membrane water electrolysis
The cathodic catalysts of Pt/C (20 wt%, 2–3 nm) and Au/C (20 wt%, 4–5 nm) were purchased from SCI Materials Hub.
2. Small Science Silver Compositing Boosts Water Electrolysis Activity and Durability of RuO2 in a Proton-Exchange-Membrane Water Electrolyzer
Two fiber felts (0.35 mm thickness, SCI Materials Hub) were used as the porous transport layers at both the cathode and the anode.
3. Advanced Functional Materials Hierarchical Crystalline/Amorphous Heterostructure MoNi/NiMoOx for Electrochemical Hydrogen Evolution with Industry-Level Activity and Stability
Anion-exchange membrane (FAA-3-PK-130) was obtained from SCI Materials Hub website.
Fuel Cells
1. Polymer Sub-two-micron ultrathin proton exchange membrane with reinforced mechanical strength
Gas diffusion electrode (60% Pt/C, Carbon paper) was purchased from SCI Materials Hub.
Characterization
1. Chemical Engineering Journal Electrochemical reconstitution of Prussian blue analogue for coupling furfural electro-oxidation with photo-assisted hydrogen evolution reaction
An Au nanoparticle film was deposited on the total reflecting plane of a single reflection ATR crystal (SCI Materials Hub, Wuhu, China) via sputter coater.
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