AvCarb® Carbon Paper


AvCarb Carbon Fiber Papers can be used as gas diffusion substrates or electrode backing for fuel cell applications. The table below lists nominal properties of commercially available AvCarb Carbon Papers for fuel cells. Please contact us for assistance in selecting the right product for your application or for more information.

Spec Sheet

Substrate GradeUnitsAvCarb EP40AvCarb P50AvCarb P75
Nominal Thickness
(@ 1psi / 0.7 N/cm2)
microns200170245
Nominal Thickness
(@ 7.3psi / 5.1 N/cm2)
microns190150205
Nominal Basis Weightg/m3365075
Break Strength
machine direction
MPa5.05.06.5
Break Strength
cross machine direction
MPa3.53.03.9
Stiffness
machine direction
Taber9.57.520.0
Stiffness
cross machine direction
Taber3.53.03.5
Bulk Density
(@ 0.69 N/cm3 / 1psi)
g/cm30.200.310.29
Air Permeability (Gurley)
through-plane
sec/100cc4.53515
Air Permeability (Gurley)
in-plane
sec/100cc50.929583
Compressibility
(22N - 113N)/22 x 100%
%14.011.510.7
Through-Plane
Resistivity
mOhm*cm28.06.77.8
Typical Roll
Width
mm400/800400/800400/800