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Fumasep FAA-3-20/30/50 FAA-3-PK-75/130 FuMA-Tech anion exchange membrane
German High-Tech All-Purpose Membrane FuMA-Tech FAA-3 Ion Exchange Membrane – Membranes for Fuel Cells, Electrolysis, Environmental Protection, and Flow Batteries!
Product Advantages:
1. Ultra-low resistance: 0.6Ω·cm² (non-reinforced film) ~ 9.7Ω·cm² (industrial thick film)!
2. Ionic conductivity up to 7.8mS/cm, surpassing competitive products!
3. Full pH range of 1-14, rock-solid stability from -20°C to 80°C!
4. PK-reinforced film tensile strength >70MPa, withstands industrial stress tests without cracking or puncturing!
5. 20μm ultra-thin film → 130μm industrial film, 20+ models in stock!
6. Available in non-reinforced, PE, or PK-reinforced versions, meeting both flexible and rigid testing requirements!
Thin and Light High Conductivity Series | Non-Reinforced Film
| Model | Thickness | Core performance | Applicable Scenarios |
| FAA-3-20 | 20UM | Ultra-thin low resistance (<2 ohm*cm²), pH 1-12 universal | KOH-free fuel cell/anion transport |
| FAA-3-30 | 30UM | Resistant to organic solvents, elongation at bag break/60% | Flow batteries/organic metal supports |
| FAA-3-50 | 50UM | Balanced and durable, replacing the discontinued Fumapem | Electrodialysis desalination/weak alkaline electrolyzer |
Industrial God of War Series | Mechanically Enhanced Film
| Model | Thickness | Reinforcement Materials | Core performance | Applicable Scenarios |
| FAA-3-PE-30 | 30UM | PE | Tear-resistant + DMSO solvent-resistant, mechanical cannon | Organic flow battery/high-voltage reactor |
| FAA-3-PK-75 | 75UM | PK | High temperature resistance up to 100°C, wide pH range 1-14 | Seawater desalination/strong acid recovery |
| FAA-3-PK-130 | 130UM | PK | Nuclear grade corrosion resistance, tensile strength>70MPa | Nuclear wastewater treatment/industrial electrolyzer |
Application and method:
| Application Scenario | Conversion steps | Key Takeaways |
| Alkaline fuel cells/electrolyzers | 0.5-1.0 M NaOH/KOH soak for 24 hours Rinse with deionized water until neutral |
The entire process is sealed to prevent CO2! The OH- membrane needs to be kept moist, otherwise it will crack if it is dry! |
| CO2 electrochemical reduction | 0.1-0.5 M KOH pre-soak for 6-12 hours 0.3 KHCO3 soak for 48-72 hours Deionized water rinse |
Pre-transfer 0H – Improve ion exchange efficiency! The membrane will expand, so leave 1-2mm margin when assembling! |
| CI-/SO4 2-Transmission | Soak in 1-2M NaCl (Cl-) or Na2S04 (S04 2-) for 24-72 hours Rinse until conductivity <10uS/cm |
Operate at room temperature! Salt residue will short-circuit, so rinse thoroughly! |
How to use ?
STEP 1:Unpacking inspection
1. Identify the film layers: The brown thin layer is the functional film, and the hard, transparent PET is the protective backing. Gently peel to separate!
2. First Aid Wrinkles: Are there wrinkles on the film? Soak in deionized water for 5 minutes to instantly smooth them out!
STEP 2:Membrane activation (required)
1. Basic Soaking: Soak in 0.5-1M NaCl solution for 72 hours (change the water every 24 hours and remove additives).
2. Customization: Refer to the table above to select the ion form conversion method.
STEP 3:Storage High-Tech
1. Short-term Storage: Soak the membrane in 0.5% NaCl solution while moist and refrigerate at 4°C for up to 1 month.
2. Hibernation Mode: Dry and seal with a silicone desiccant and store away from light for up to 3 years.
3. Resurrection Tip: Soak the membrane in 1% Na2SO3 for 12 hours to remove biofilm and restore performance.
FAQ?
Q1: Is reinforced film less conductive than non-reinforced film?
PE-30 has a conductivity of 1.5-20mS/cm, only 15% lower, but it offers double the tear resistance! Have the best of both worlds!
Q2: Will a +/- 0.5cm dimensional error affect performance?
Due to humidity sensitivity, dimensional fluctuations are normal. Soak in water before cutting to restore dimensions, leaving a 1cm margin is sufficient.
