AvCarb Material Solution’s Gas Diffusion System GDS2120 P75 combines AvCarb's proprietary carbon fiber paper, a PTFE treatment, and micro-porous layer coating, designed for the rigorous demands of specific fuel cell applications such as PEMFC, DMFC, and PAFC.

AvCarb P75 is the base substrate used in GDS2120.

AvCarb Gas Diffusion Systems (GDS) Carbon Paper Properties Sheet

AvCarb Gas Diffusion Systems (GDS) Carbon Paper Selection Guide

AvCarb Gas Diffusion Systems Properties
Material Type	Carbon Fiber Paper
Base Material	AvCarb P75
Nominal Thickness (@ 5.00 N/cm²)	.248 mm (248 microns)
Nominal Base Weight	101 g/m²
Break Strength machine direction	25 MPa
Break Strength cross machine direction	15 MPa
Stiffness machine direction	21.0 Taber
Stiffness cross machine direction	14.7 Taber
Bulk Density (@ 0.68 N/cm² / 1psi)	0.40 g/cm3
Compressibility ((22N - 113N)/22 x 100%)	11.0%
Through-Plane Resistivity	<14.0 mOhm*cm²
PTFE Treatment	Yes
Microporous Layer (MPL)	Yes, on one side