Casting component and method for the application of an anticorrosive layer

A casting component for a device for casting or handling a metal melt, the component comprising a metallic basic body and a melt contact surface region which is exposed to the metal melt during casting operation, wherein the metallic basic body is provided in the melt contact surface region with an anticorrosive layer which is resistant to the metal melt and which is a sol/gel layer, using, as a filler, at least one of microparticles or nanoparticles of one or more substances selected from the group consisting of borides, nitrides and carbides of the transition metals and their alloys, boron, silicon, and Al2O3, wherein the sol/gel layer comprises a plurality of gel layer plies, at least one gel layer ply being formed without the microparticles or nanoparticles, and the at least one gel layer ply formed without the microparticles or nanoparticles constitutes the outer layer ply in a depositing direction of the sol/gel layer, and wherein the casting component is configured for use as a casting fitting, a casting vessel, a melt furnace constituent, a melt conveying constituent, or a part of one of these diecasting machine constituents.