Description
Product Overview
Nafion™ N115 is a non-reinforced perfluorosulfonic acid (PFSA) proton exchange membrane in the acid (H+) form. It is widely used in PEM fuel cells and water electrolyzers as a separator and solid electrolyte, offering reliable proton conductivity, strong chemical resistance, and durable electrochemical performance.
Key Features
- Non-reinforced PFSA membrane
- Nominal thickness: 127 μm
- Typical basis weight: 250 g/m²
- Minimum conductivity: 0.10 S/cm
- Suitable for PEM fuel cells and water electrolysis systems
- Available in roll goods and custom-cut pieces for industrial procurement
Typical Properties
| Property | Value |
|---|---|
| Membrane Type | Nafion™ N115 |
| Polymer Type | PFSA / PTFE copolymer |
| Structure | Non-reinforced |
| Thickness | 127 μm |
| Basis Weight | 250 g/m² |
| Conductivity | 0.10 S/cm min. |
| Available Acid Capacity | 0.90 meq/g min. |
| Total Acid Capacity | 0.95–1.01 meq/g |
| Water Content | 5% |
| Water Uptake | 38% |
Standard Dimensions & Supply Format
| Item | Standard / Range |
|---|---|
| Standard Roll Widths | 305 mm and 610 mm |
| Special Order Roll Width Range | 0.20 m to 1.22 m |
| Intermediate Width Increment | 0.125 in |
| Standard Roll Length | 50 m |
| Custom Cut Piece Width | 0.30 m to 1.22 m |
| Custom Cut Piece Length | 0.30 m to 1.22 m |
| MOQ for Non-standard Roll Widths / Lengths | 100 m² |
| Packaging | Small pieces shipped flat; longer pieces shipped on a roll |
Applications
- PEM fuel cell stack development
- Water electrolysis systems
- Electrochemical separation applications
- R&D, prototyping, and industrial B2B procurement
Storage & Handling
Unopened membrane rolls should be stored in the original shipping box, away from direct sunlight, in a climate-controlled environment at 10–30°C and 30–70% relative humidity. Before opening, allow the membrane roll to equilibrate to the processing area temperature for 24 hours.
Important Note
The data shown above are typical values from manufacturer technical literature and should not be used alone to establish specification limits or serve as the sole basis of design. For bulk orders, customized dimensions, or project-based procurement, please contact us for confirmation.





