Abstract: A nonconductive surface metallization method of plastic substrate comprising: providing a plastic substrate; and forming a black-colored and nonconductive alloy coating on the plastic substrate surface by a vacuum evaporating process, the alloy coating being formed by a target comprising a first material and a second material, the first material being a steel, the second material being selected from a group consisting of indium, tin, aluminium and silicon dioxide. A plastic article has a black-colored and nonconductive alloy coating is provided in the present disclosure.

Abstract: A surface treatment method for plastic articles, comprising: molding a substrate to form a roughened region on a surface of the substrate; forming a base paint coating on the surface of the substrate having the roughened region; forming a vacuum coating with metallic appearance on the base paint coating; forming a middle paint coating on the vacuum coating; and forming a top paint coating on the middle paint coating.