Relevant conditions for electrophoretic (infiltration) deposition (EPID) of thick conductive fiber preforms were investigated. Modified electrophoretic deposition cell was used to fabricate conductive fiber-reinforced composites from an aqueous suspension. Infiltration of conductive preforms proceeds in a similar manner as for non-conductive fiber reinforcements, by deposition at the electrode and backfilling of the fiber preform. (C) 2015 The Electrochemical Society. All rights reserved.