AvCarb Material Solution’s Gas Diffusion System GDS3250 EP40 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 EP40 is the base substrate used in GDS3250.

AvCarb GDS3250 gas diffusion layer is highly recommended for Automotive and Material Handling applications.

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 EP40
Nominal Thickness (@ 5.00 N/cm²)	.225 mm (225 microns)
Nominal Base Weight	75 g/m²
Break Strength machine direction	12.0 MPa
Break Strength cross machine direction	7.0 MPa
Stiffness machine direction	10.0 Taber
Stiffness cross machine direction	8.0 Taber
Bulk Density (@ 0.68 N/cm² / 1psi)	0.33 g/cm3
Compressibility ((22N - 113N)/22 x 100%)	16.0%
Through-Plane Resistivity	<14.0 mOhm*cm²
PTFE Treatment	Yes
Microporous Layer (MPL)	Yes, on one side