Freudenberg H23C5 is a flexible and easy to use carbon paper Gas Diffusion Layer (GDL) with a Microporous Layer (MPL). It is 220 um (microns) thick @ 1 MPa compression.

Freudenberg H23C5 is recommended for:

• Low humidified stationary Low Temperature Polymer Electrolyte Membrane Fuel Cell Cells (LT-PEMFC) systems
• LT-PEMFC Automotive applications

Freudenberg H23C5 is formerly known as H2315 C5.

Freudenberg Carbon Paper GDL Properties Sheet

Freudenberg Fuel Cell and Electrolyzer Carbon Paper GDLs SDS

Gas Diffusion Layer Properties
Material Type	Carbon Fiber Paper
Thickness	.220 mm (220 microns) @ 1 MPa Compression
Air Permeability (s)	25 (TP Air Permeability acc. to Gurley (ISO 5636-5))
Electrical Resistivity (through plane)	6.5 mΩcm² (TP Electrical Resistance @ 1 MPa compression)
Substrate PTFE Treatment	No
Microporous Layer	Yes, on one side (proprietary PTFE % value)