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AvCarb Material Solution’s Gas Diffusion System GDS1120 P50 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 P50 is the base substrate used in GDS1120.

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 P50
Nominal Thickness (@ 5.00 N/cm²)	.184 mm (184 microns)
Nominal Base Weight	79 g/m²
Break Strength machine direction	18 MPa
Break Strength cross machine direction	10 MPa
Stiffness machine direction	10.0 Taber
Stiffness cross machine direction	6.0 Taber
Bulk Density (@ 0.68 N/cm² / 1psi)	0.40 g/cm3
Compressibility ((22N - 113N)/22 x 100%)	14.0%
Through-Plane Resistivity	<14.5 mOhm*cm²
PTFE Treatment	Yes
Microporous Layer (MPL)	Yes, on one side