Abstract: The invention relates to a kit for preparing a conductive element comprising a container A containing a liquid dispersion A?, comprising dispersed nanoparticles having a metallic surface and a ligand capable of binding to said surface; a container B—which may be the same or different as the container A containing the liquid dispersion A?—said container B containing a liquid B? comprising reducible silver ions or other reducible metal ions; and a further container C containing a liquid C? comprising a reducing agent for the metal ions of the liquid from container B.