Energy
Sefar’s reinforcement fabrics for ion exchange membranes in green hydrogen electrolysis and redox flow batteries improve durability, efficiency, and performance.
Reinforcing the Future of Clean Energy
Solutions for Sustainable Energy
We provide reinforcement fabrics for ion exchange membranes in AEC, PEM, and AEM for an efficient and sustainable hydrogen production.
Maximized Performance and High Uptime
Used in alkaline electrolysis cells (AEC), proton exchange membranes (PEM), and anion exchange membranes (AEM), our reinforcement fabrics help maximize performance, simplify production, and extend uptime.
- Maximize Membrane Performance
Ultra-thin fabrics with high open area enable thinner membranes while increasing their performance. - Extend Uptime
Exceptional mechanical and chemical resistance extends membrane life and boosts operational stability. - Ensure Quality
Full control from yarn to fabric ensures low contamination, tight tolerances, and repeatable quality. - Streamline Production
High planarity and cleanliness simplify membrane processing. Custom roll formats cut waste and setup time.
Electrolyzers need highly efficient and durable membranes for reliable electrolysis over a long product lifetime.
Improving Hydrogen Production
Our ultra-thin, high-open-area fabrics enable thinner membranes that support faster ion transport and greater hydrogen yield. With excellent chemical and mechanical resistance, our fabrics enhance membrane durability, reduce downtime, and improve long-term process efficiency. The fabrics are also available in custom roll formats, to reduce waste and set up time.
Membranes in redox flow batteries require mechanical stability and chemical resistance to ensure energy efficiency and long-term durability.
Effective Battery Energy Storage
Our reinforcement fabrics offer dimensional stability, chemical resistance and consistent quality, making them ideal for membranes used in redox flow batteries. They support reliable and efficient energy storage systems by maintaining membrane performance, minimizing swelling, and boosting operational stability.
Build to Perform
Discover the material features that drive consistent membrane quality, process efficiency, and reliable performance in demanding energy applications.
- Dimensional Stability
Our woven reinforcement fabrics offer excellent dimensional stability to improve membrane durability. - Ultra-Thin Design
Low fabric thickness with micrometer-level precision ensures uniformity across full rolls and enables thinner membranes. - Chemical & Thermal Resistance
Engineered for harsh environments, our fabrics resist aggressive chemicals and high temperatures to ensure stable performance. - Clean Surface Quality
Particle-free surfaces and strict contamination control support high membrane quality and efficient production processes.
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SEFAR IEM Reinforcement Fabrics
Applications in Ion Exchange Membranes
Tailored Reinforcements for Seamless Integration
We deliver reinforcement fabrics tailored to your membrane production needs. From polymer choice to mesh design and roll dimensions, every detail can be customized to your specifications.
Trusted Quality and Reliability
With full control over the supply chain, from the yarn to the finished component, we ensure consistent quality, full traceability, and reliable performance. This integrated approach simplifies production, boosts efficiency, and speeds up innovation. Learn more about our capabilities.
Upcoming Events
17-19 March 2026 | Tokyo | Japan
H2 & FC Expo 2026
H2 & FC EXPO gathers technologies for production, transportation, storage, and use of hydrogen.
25-27 March 2026 | Beijing | China
China Clean Energy Expo 2026
Organized by top national energy associations, the event features dedicated zones for solar energy, hydrogen and fuel cells, energy storage, and integrated smart energy systems. It presents over 2,000 new products and technologies covering the full clean power supply chain—generation, storage, transmission, and applications.
20-22 October 2026 | Hamburg | Germany
Hydrogen Technology Expo 2026
Hydrogen Technology World Expo is the must-attend conference and exhibition that is exclusively dedicated to discussing advanced technologies for the hydrogen and fuel cell industry.
All events
Learn More About Us
Get in Touch in Switzerland
Sefar Heiden
Hinterbissaustrasse 12 9410 Heiden
