METHOD FOR PRODUCING A METAL OR NON-METAL, METAL-COATED SUBSTRATE, A METAL OR NON-METAL, METAL-COATED SUBSTRATE, AND USE OF SAID SUBSTRATE

摘要

The invention relates to a method for producing a metal or non-metal, metal-coated substrate, comprising the following steps: a) providing at least one substrate having at least one surface that can be coated with metal at least in some areas; c) applying at least one metal composite protective layer, containing as a main component at least one first metal selected from the group comprising Al, Mn, Mg, Cr, and Zn or at least one first metal alloy selected from the group comprising steel, stainless steel, an Mg alloy, a Cr alloy, and an Al alloy, and at least one second metal and/or at least one oxidically bonded second metal, selected from the group comprising Zr, Ti, and Hf, distributed in the main component as a minor component, or composed of the main component and the minor component, wherein step c) comprises the following sub-steps: i) applying at least one metal layer, containing the or composed of the at least one first metal or containing the or composed of the at least one first metal alloy, to the surface of the substrate that can be coated, by means of vapor deposition and/or sputtering, and ii) treating the metal layer according to step i) with at least one, in particular acidic, first aqueous system, containing at least one first compound of the second metal; d) silanizing the composite protective layer from step c) ii) by treating said composite protective layer with at least one, in particular alkaline, second aqueous system so as to form at least one polysiloxane layer, in particular directly on the composite protective layer; and e) applying at least one lacquer layer, in particular directly, to the polysiloxane layer according to step d). In an alternative embodiment, the metal layer applied by means of vapor deposition and/or sputtering can be treated directly with the second aqueous system before the lacquer layer is applied. The invention further relates to metal-coated substrates that can be obtained in accordance with the method according to the invention. The invention further relates to the use of the coated substrates according to the invention.