Painting Galvanized Sheet Metal

How to paint galvanized metal.

Painting galvanized sheet metal.

All you have to do is simply apply the vinegar to a clean rag and then wipe down the galvanized surface. The galvanization process leaves a. White vinegar is both effective and non toxic so it is much safer to use than your average industrial solvent. If you have a kitchen then you probably already have this handy solution.

Wipe the galvanized surface down with white vinegar. Once the metal has dried dampen a cloth with white vinegar and wipe the surface down. Rinse with water and let completely dry. Clean new galvanized metal surfaces with a water based cleaner degreaser to remove any oil or and contaminants.

Rinse the metal and let it dry completely for several hours. 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. Go over the metal with a wire brush to remove any oxidation.

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. Avoid using alkyd based paints such as spray paint on galvanized steel. Polish the metal with ammonia and sand any rough areas.

Wash the metal thoroughly with hot soapy water. Clean the surface with warm or hot soapy water. For the most dependable results look for paints that are formulated specifically to bond to galvanized steel. Remove any handles or other attachments from the metal.

The vinegar is a mild acid which acts to etch the galvanized coating so the paint will stick. The enamels in alkyd paints can react with the slick zinc finish on a galvanized steel surface leading to poor adhesion and peeling. Here s how to paint galvanized metal.