METHOD FOR FORMING DOUBLE-LAYERED COATING FILM

摘要

Provided is a method for appropriately providing a dual-layer coating with excellent anticorrosion and weather resistance on a substrate to be coated. The method for forming a dual-layer coating comprises a step of forming a bottom coating in which the substrate to be coated is coated with a bottom paint composition in order to form a wet bottom coating; a step of forming a top coating in which the wet bottom coating is coated with a top paint composition in order to form a wet top coating; a step of drying in which the wet bottom coating and the wet top coating are dried simultaneously. The surface tension difference between the bottom coating and the top coating and the film-drawing length are restricted.