Spectracarb 2050A-0550

SKU: 600550.
Category: .
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Price: $14.00$91.00
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  • Technical Details
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Product Description

Spectracarb™ 2050A-0550 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 03.

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


.127 mm (127 microns)

Basic Weight

88 (g/cm2)


0.50 g/cm3

Porosity (%)


Flexural Strength (MPa)

37 MPa

Air Permeability (Through-Plane

35 cfm/ft²

Electrical Resistivity (Through-Plane)

18 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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