Provided are an abrasion-resistant, stable and flame-resistant superhydrophobic/superoleophobic coating, and a preparation and application thereof, belonging to the field of new materials; the preparation includes: taking a superhydrophobic/superoleophobic suspension as a top-layer spraying solution; dispersing epoxy resin in a solvent, and adding a fluorine-containing curing agent and a flame retardant for reaction to obtain a bottom-layer spraying solution; and first spraying the bottom-layer spraying solution to a surface of a substrate, then spraying the top-layer spraying solution, and drying the surface to obtain a bilayer abrasion-resistant superhydrophobic flame-resistant coating; the superhydrophobic/superoleophobic suspension contains multi-level micro nano structural particles, a fluorine-containing curing agent and fluorinated epoxy resin; the prepared single-layer coating and bilayer structure (BLC) have hydrophobicity, flame resistance, good mechanical properties and excellent corrosion resistance performance.

A composite plated steel sheet including a base steel sheet; a ZnMgAl-based plating layer provided on at least one surface of the base steel sheet; and a resin layer provided on at least one surface of the ZnMgAl-based plating layer. The resin layer includes a base resin and resin powder. A hardness of the resin powder is 1.1 to 2 times that of the base resin.

A pre-painted metal sheet including a metal sheet and a void-containing paint film, which is located on at least one surface of the metal sheet, with dispersed fine particles and voids, wherein when a cross-section of the void-containing paint film cut in a thickness direction of the void-containing paint film is observed, the voids are present in 40 to 95 area % of a total area of the cross-section of the void-containing paint film. When an average particle diameter of the fine particles is t [m] and an average film thickness of the void-containing paint film is T [m], a ratio t/T is in a range of 0.7 to 3.0. An elastic modulus of the fine particles, when compressed by 10% from the thickness direction, is 30 MPa or more.

A method for coating a surface, including the following steps: applying a layer of a curable composition to the surface; irradiating the curable composition with a first radiation having a wavelength of 100 to 280 nm, so as to give a partially cured composition; and irradiating the partially cured composition with a second radiation including at least one wavelength higher than the wavelength of the first radiation, and/or an electron beam, so as to give a cured composition, the curable composition including at least one compound curable by actinic radiation, and particles of at least one polyamide. Also, a coating layer obtained by such a method and to an object comprising a surface covered with such a coating layer.