Gas Diffusion Layers for MEAs
Mott gas diffusion layers are tailored specifically to your application providing you the best performance in terms of mass transport, conductivity, and materials compatibility. Our porous sheet is customized for porosity, thickness, and rigid contact surface, to suit your needs. Additionally, Mott has the most extensive material selection in the industry, including titanium for standard applications, nickel 200 and 430 SS for SOFCs, and specialty alloys, such as zirconium/niobium, for aerospace applications.

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Literature & Data Sheets
Typical Applications
- Hydrogen generation and storage
- Various fuel cell applications
- On-site gas generation
- Gas generation in spacecraft
Gas Diffusion Layers
Overview of various customization options for Mott GDLs
Porous Transport Layer (PTL) Case Study
Mott Porous Transport Layers achieve high power densities in gas generation applications due to a proprietary ultra-thin design resulting in better mass transport in a smaller footprint.
Mott Fuel Cell and Battery Membranes
Learn about Mott capabilities for fuel cell and battery membranes.
Titanium Sheet Quality Standards
Mott Corporation's acceptance criteria for ultra-thin titanium sheet used in various sustainability and alternate energy applications
Product Specs
Length |
Common Lengths – 10″, 12″, 24″, 40″ Sheet can be laser cut or sheered into smaller pieces if needed. If you need a custom length, please consult factory. |
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Width |
Common Widths – Less than 10” Sheet can be laser cut or sheered smaller if needed. If you need a custom width, please consult factory. |
Thickness |
Common Thicknesses – .010-.125” (dependent on media grade) Custom lengths available, consult factory |
Media Grades |
Common Media Grades – .2, .5, 2, 5, 10, 20, 40, 100 Custom media grades available upon request, consult factory |
Materials |
Common alloys – 316LSS, Titanium, Nickel 200, Hastelloy C-276, Inconel 600 Custom alloys available upon request, consult factory |
Temperatures |
Alloys with temperature resistance up to 1700 degrees Fahrenheit are available. Custom alloys available to accommodate unique operating temperatures, consult factory |
Videos & Articles
Our Design Capabilities
Application Engineering – Need consultation on your design? Our team of application engineers are ready to help you determine the right part for your design. With decades of experience of working with the world’s largest technical and performance brands, we’re eager to solve complex problems with you.
Customer Innovation Center – We enjoy working with customers on complex projects. In fact, we’ve dedicated an entire facility to it. Want to join us for various lab testing and engineering consultation sessions? Visit our Customer Innovation Center in Connecticut to develop a solution for your unique application.
Rapid Prototyping Cell – Trying to determine the feasibility of your design as fast as possible? Use our rapid prototyping cell to turn around prototypes in as little as 2 weeks. Our engineers will work with equipment similar to our manufacturing facility to provide you with a manufacturable, economical design.
Additive Manufacturing – If you’re looking for the most uniform porosity or a non-traditional design, look no further than working with our porous 3D printing team. We can create controlled porosity designs with various density gradients in non-traditional shapes to satisfy the most unique design request. Our technology allows us to print parts with both solid and porous in a single print cycle.
Relevant Services
Lab Testing – If you need data packages or feasibility testing for your part prior to installation, we’re happy to work with you. We’ll use our lab center to perform various characterization and performance tests to ensure your parts are meeting strict specifications.
Computational Fluid Dynamics – If you would like to model your process fluids interaction with a Mott part, ask your Mott representative how we can use CFD software.
Engineering Memberships – If you’re constantly working on complex designs that require the highest standards of engineering support, ask about our membership rates, which allow you discounted rates to various lab testing, prototyping, and engineering resources.