The substrate (rust -proofladed paint) for galvanized parts has epoxy zinc yellow primer (dual components) and epoxy zinc yellow primer. Galvanized parts are non -ferrous metals, and non -colored metals have poor adhesion than black all -metal; alcohol -red -bottom paint commonly used on the market, epoxy iron red primer should not be used for galvanized parts, otherwise it will easily fall off. It is specifically pointed out that the use of alcoholic acid paint on the galvanized parts will cause saponification reaction. Not only does the coating failure, the original galvanized layer will also be damaged.
