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
X-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)