Dense membrane preparation was attempted by electrochemical deposition of polypyrrole and polythiophene on stainless steel meshes. The effect of modifying experimental factors such as supporting electrolyte, electrochemical parameters and water addition were investigated. Compact polypyrrole deposits spreading over the meshes could be obtained, but preparative deposition of polythiophene on the same substrate was hindered by competitive anodic corrosion.