A method for producing a metallic or non-metallic metal-coated substrate, comprising the following steps: a) providing at least one substrate with at least one, at least regionally, metal-coatable surface; c) applying at least one metallic composite protective layer, containing as a main component at least one first metal selected from the group consisting of aluminum, manganese, magnesium, titanium and zinc, or at least one first metal alloy selected from the group consisting of steel, stainless steel, a magnesium alloy, a titanium alloy and an aluminum alloy, and at least one second metal and/or at least one oxidically bonded second metal selected from the group consisting of zirconium, titanium and hafnium distributed as a minor component in the main component, or composed of the main component and the minor component, wherein method step c) comprises the following sub-steps i) applying at least one metal layer, containing or composed of the at least one first metal or containing or composed of the at least one first metal alloy, to the coatable surface of the substrate by means of vapor deposition and/or sputtering; and ii) treating the metal layer according to step i) with at least one 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 second aqueous system comprising at least one silane compound capable of polycondensation and/or polyaddition reactions, forming at least one polysiloxane layer on the composite protective layer; and e) applying at least one lacquer layer onto the polysiloxane layer according to step d). a) providing at least one substrate with at least one, at least regionally, metal-coatable surface; c) applying at least one metallic composite protective layer, containing as a main component at least one first metal selected from the group consisting of aluminum, manganese, magnesium, titanium and zinc, or at least one first metal alloy selected from the group consisting of steel, stainless steel, a magnesium alloy, a titanium alloy and an aluminum alloy, and at least one second metal and/or at least one oxidically bonded second metal selected from the group consisting of zirconium, titanium and hafnium distributed as a minor component in the main component, or composed of the main component and the minor component, wherein method step c) comprises the following sub-steps i) applying at least one metal layer, containing or composed of the at least one first metal or containing or composed of the at least one first metal alloy, to the coatable surface of the substrate by means of vapor deposition and/or sputtering; and ii) treating the metal layer according to step i) with at least one first aqueous system, containing at least one first compound of the second metal; i) applying at least one metal layer, containing or composed of the at least one first metal or containing or composed of the at least one first metal alloy, to the coatable surface of the substrate by means of vapor deposition and/or sputtering; and ii) treating the metal layer according to step i) with at least one 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 second aqueous system comprising at least one silane compound capable of polycondensation and/or polyaddition reactions, forming at least one polysiloxane layer on the composite protective layer; and e) applying at least one lacquer layer onto the polysiloxane layer according to step d).