Spectracarb 2050A-1535

SKU: 601535.
Category: .
Price: $14.00$91.00
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  • Technical Details
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Product Description

Spectracarb™ 2050A-1535 Gas Diffusion Layer (GDL) is a heavy duty porous graphitized carbon sheet with low compressibility and with general utility for a range of PEM fuel cell applications, including both commercial and military applications. This GDL has very similar properties to that of Toray Carbon Paper 120.

Spectracarb™ 2050A-1535 (0.35 g/cm³)

Spectracarb 2050 Gas Diffusion Layer (GDL) sheets are porous “graphitized” resin bonded carbon fiber papers and multi-ply panels specifically designed for use in PEM, DMFC and PAFC fuel cells, Electrolyzers, Humidifiers and other Electrochemical Devices and optimized for:

  • Electrical Conductivity
  • Mechanical Strength and Durability
  • Gas/Air Permeability
  • Water Management

Spectracarb GDLs are produced in the USA and are available in a wide range of standard and custom grades, densities, sizes and materials for fuel cells, electrolyzers, humidifiers, specialty batteries and other electrochemical applications.

Technical Details

Weight lbs
Dimensions N/A
Material Type

Carbon Fiber Paper


.381 mm (381 microns)

Basic Weight

175 (g/cm2)


0.35 g/cm3

Porosity (%)


Flexural Strength (MPa)

40 MPa

Air Permeability (Through-Plane

45 cfm/ft²

Electrical Resistivity (Through-Plane)

13 mΩcm²

Electrical Resistivity (in plane)

5.4 mΩcm

Thermal Conductivity - Through-Plane (@ 25°C)

3.4 W/m·K

Thermal Conductivity - Through-Plane (@ 100°C)

3.6 W/m·K

Thermal Conductivity - In-Plane (@ 25°C)

20.7 W/m·K

Thermal Conductivity - In-Plane (@ 100°C)

24.2 W/m·K

PTFE Content


Microporous Layer (MPL)



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