FIELD: construction.
SUBSTANCE: invention relates to articles, particularly articles such as faucets, having a decorative and protective coating having the appearance of a dark color. More specifically, the dark color is black, dark bronze, blue-black, vivid blue or a blue-grey color.
EFFECT: in a preferred embodiment, the coating comprises a nickel or polymer basecoat layer, as well as first gives the colour layer consisting of oxycarbides Refractory metals with high content of oxygen, second color layer comprising oxygen-rich refractory metal oxycarbides and a top layer of refractory metal oxides.
31 cl, 3 dwg, 4 ex
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