▎ 摘　　要

NOVELTY - Composition comprises rare earth reagent, graphene powder and water zinc-rich primer, and is prepared by uniformly mixing all raw materials and then mechanical stirring, where the ratio of graphene powder, rare earth reagent, zinc powder in water zinc-rich primer to water in water zinc-rich primer is 1:3-7:30:62-66. USE - Used as composition. ADVANTAGE - The composition has reduced galvanic corrosion and improved corrosion resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing composition comprising (i) adding graphene powder into rare earth reagent, mixing by mechanical stirring at room temperature to obtain graphene powder and rare earth reagent mixed solution, and (ii) mixing graphene powder and rare earth reagent mixed solution with water zinc-rich primer at room temperature by mechanical stirring to obtain final product.