Painting Galvanized Sheet Metal

Clean the surface with warm or hot soapy water.

Painting galvanized sheet metal.

The vinegar is a mild acid which acts to etch the galvanized coating so the paint will stick. Remove any handles or other attachments from the metal. For the most dependable results look for paints that are formulated specifically to bond to galvanized steel. The first thing he always did was wash the surface of the metal with a mild acid.

Rinse the metal with a weak solution of water and ammonia and allow it to dry. The acid in the vinegar will act to etch the metal and help the paint adhere. Once the metal has dried dampen a cloth with white vinegar and wipe the surface down. Rinse with water and let completely dry.

White vinegar is both effective and non toxic so it is much safer to use than your average industrial solvent. Wash the metal thoroughly with hot soapy water. The enamels in alkyd paints can react with the slick zinc finish on a galvanized steel surface leading to poor adhesion and peeling. All you have to do is simply apply the vinegar to a clean rag and then wipe down the galvanized surface.

Here s how to paint galvanized metal. Clean new galvanized metal surfaces with a water based cleaner degreaser to remove any oil or and contaminants. Avoid using alkyd based paints such as spray paint on galvanized steel. If galvanized metal is not prepared and painted properly it will tend to peel over time.

Prime the surface with a primer made for metal. Polish the metal with ammonia and sand any rough areas. Wipe the galvanized surface down with white vinegar. Go over the metal with a wire brush to remove any oxidation.

The galvanization process leaves a. Rinse the metal and let it dry completely for several hours. How to paint galvanized metal.