Freudenberg H23C2 is a flexible and easy to use carbon paper Gas Diffusion Layer (GDL) with a Microporous Layer (MPL). It is recommended for highly humidified stationary PEMFC systems and High Temperature PEM. It is 220 um thick @ 1 MPa compression.

Freudenberg H23C2 is recommended for:

• Highly humidified stationary Low Temperature Polymer Electrolyte Fuel Cell Cells (LT-PEMFC) systems
• High Temperature Polymer Electrolyte Fuel Cells (HT-PEMFC)

Freudenberg H23C2 is formerly known as H2315 C2.

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)	50 (TP Air Permeability acc. to Gurley (ISO 5636-5))
Electrical Resistivity (through plane)	9 mΩ/cm² (TP electrical resistance @ 1 MPa compression)
Substrate PTFE Treatment	No
Microporous Layer	Yes, on one side (proprietary PTFE % value)