▎ 摘　　要

NOVELTY - A base material with a coating film comprises a base material made of metal, an undercoat layer formed on the base material, and a coated substrate having an overcoat layer. The undercoat layer comprises zinc powder, graphene, and a binder. The content ratio of graphene to zinc powder in the undercoat layer is (1.0x 10-4)-1.0 %mass. The overcoat layer contains a fluororesin. USE - Base material with coating film used for outdoor structures such as bridge, highway, and power transmission towers. ADVANTAGE - The base material with coating film has excellent corrosion resistance, and durability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacture of base material with a coating film.