The surface to be coated is cleaned and roughened, to provide adhesion of molten particles in the coating material when it’s sprayed onto the workpiece. The coating material is melted using thermal, electrical or thermochemical means. Molten materials (metals, alloys or ceramics) are sprayed onto a substrate material (the component) where they solidify and bond to it. Materials can be solid (wire, rod or cord) or powder, and are heated into the molten or semi-molten state by thermal, electrical or thermochemical means. The sprayed particles impinge on the substrate and flatten out into thin platelets.