How Do You Prep Galvanized Metal For Zinc Paint?
Galvanized metal has an oil-based coating that offers protection from rust. Unfortunately, this coating makes it impossible for paint to adhere properly. Many amateur do-it-yourselfers bypass important preparation steps when painting galvanized metallic surfaces, and the results are almost always disappointing. Before you attempt to apply zinc paint to galvanized metal, you need to employ the proper prep techniques, or you will end up with a finish that will blister and peel over time. Wait for a warm, dry day. Skip this step if you are working indoors. Remove rust from the galvanized metal by scraping it with the wire brush. Skip this step if the metal is new or in good condition. Apply a water-based degreasing agent to the galvanized metal. Scrub the surface vigorously with a coarse brush. Rinse the galvanized metal thoroughly with a water hose. Allow the surface to dry completely before continuing. Apply etching primer to the metal using the 3- to 4-inch oil-based paintbrush. Work f
