▎ 摘　　要

NOVELTY - Coating material comprises graphene and a fluorine-containing polymer, where the layer thickness of the graphene is 0.1-100 nm, the specific surface area of the graphene is 50-1500 m2/g, and the total of the hydroxyl value and the acid value of the fluorine-containing polymer is 10-150 mg potassium hydroxide/g. USE - The material is used for producing a coated substrate (claimed), and as a heavy-duty anti-corrosion material for coating metal outdoor structures such as bridges, highways and power transmission towers. ADVANTAGE - The coating material provides coating film with excellent compatibility between the fluorine-containing polymer and the curing agent, excellent low-temperature curability and durability, and uniform dispersibility of graphene. The coating film has excellent light resistance, chemical resistance and weather resistance, and protects outdoor structures that can be exposed to sunlight for a long time. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a coating film formed from the coating material, and having a thickness of 50-100 mu m; (2) a coated substrate comprising a substrate, an undercoat layer containing zinc dust and graphene, and an overcoat layer comprising the coating film sequentially; and (3) a method for producing the coated film, involving applying an undercoat on a substrate to form an undercoat layer, and applying the coating material on the undercoat layer to form an overcoat layer.