Description
Overview
GORE® M775.15 is a thin, ePTFE-reinforced proton exchange membrane developed for commercial vehicles and other heavy-duty PEM fuel cell applications. With a nominal thickness of 15.5 μm, it is engineered to combine high power-density capability with enhanced chemical durability, controlled hydrogen crossover, dimensional stability and balanced mechanical strength. M775.15 is particularly suited to demanding fuel cell systems requiring reliable performance and extended operating life.
Key Features
- Thin, ePTFE-reinforced proton exchange membrane
- Nominal membrane thickness of 15.5 μm
- Low proton resistance under reduced-humidity operating conditions
- High chemical durability for demanding fuel cell environments
- Controlled hydrogen crossover for reliable gas separation
- Low dimensional swelling for improved membrane stability
- Balanced tensile strength in machine and transverse directions
- Designed for commercial vehicles and other heavy-duty PEM fuel cell applications
Technical Specifications
| Property | M775.15 | Unit |
|---|---|---|
| Membrane Type | ePTFE-reinforced proton exchange membrane | — |
| Membrane Color | Black | — |
| Nominal Thickness | 15.5 | μm |
| Proton Resistance at 80 °C, 30% RH | < 80 | mΩ·cm² |
| Hydrogen Crossover at 80 °C, 50% RH | 30 | mA/cm²/MPa |
| Tensile Strength — Machine Direction | 38 | MPa |
| Tensile Strength — Transverse Direction | 39 | MPa |
| Swelling Ratio — Area Change | < 5 | % |
| Peel Strength Between Membrane and Backer | 60 | mN/cm |
| Mechanical Durability — RH Cycle Test | 1.0 | Normalized to M775.15 |
| Chemical Durability — OCV Hold Test | ++ | 30% RH, 95 °C |
| Standard Roll Widths | 220 / 340 | mm |
| Standard Production Roll Length | 200 | m |
| Standard Sample Roll Lengths | 10 / 50 | m |
| Membrane Orientation | The membrane side not attached to the backer is used as the cathode side | — |
| Roll Orientation | Membrane facing outwards | — |
Applications
- PEM fuel cells
- Commercial vehicle fuel cell systems
- Heavy-duty fuel cell trucks and buses
- High-power-density fuel cell stacks
- Long-duration transportation power systems
- Membrane electrode assembly fabrication
- Fuel cell research and industrial development
Commercial Note
Prices shown on this page are indicative reference prices and may vary depending on quantity, roll dimensions, packaging format and market conditions. Listed prices exclude VAT, shipping and any custom cutting or packaging services. Bulk orders, sample rolls and customized supply requirements are available upon request. Please contact us for a detailed quotation, availability and technical support.
