The invention discloses an ultra-hard waterproof, anti-
fouling and wear-resistant
coating film. The ultra-hard waterproof, anti-
fouling and wear-resistant
coating film comprises a substrate layer, a film layer, an anti-
fouling layer and an air medium layer, wherein the film layer, the anti-
fouling layer and the air medium layer are successively arranged on the substrate layer; the thickness of thesubstrate layer is 0.05-0.8 mm; the film layer is formed by alternately arranging nitridosilicates and
oxide of
silicon, and the thickness of the film layer is 300-650 nm; the thickness of the anti-
fouling layer is 10-20 mm; the air medium layer is an air medium with the
refractive index NA equal to 1, and the
wavelength gamma c is equal to 550 nm; and a
color film layer is arranged between the film layer and the anti-
fouling layer and is champaign gold or silver or brillant blue. Compared with the prior art, the ultra-hard waterproof, anti-fouling and wear-resistant
coating film has the outstanding effect that the film layer not only has gorgeous color, but also has quite high
mechanical strength and
corrosion resistance, and after the anti-fouling layer is added, the hand feeling and the durability of a plated piece are obviously improved.