On older galvanized metal surfaces where the zinc coating has begun breaking down known as white rust use a wire brush or fine sandpaper to remove the chalky film before cleaning it.
How do you paint galvanized sheet metal.
Let the paint dry according to the directions.
Once the metal has dried dampen a cloth with white vinegar and wipe the surface down.
Apply the metal paint which should be the same brand as the primer according to the product directions.
When painting galvanized steel all paint systems used should be specifically formulated for use on galvanized steel and applied in accordance with the paint manufacturer s recommendations.
Inspect the surface carefully to make sure it s completely coated with the paint source.
Let the primer dry completely which should take anywhere from 2 6 hours so your paint will stick properly.
White vinegar is both effective and non toxic so it is much safer to use than your average industrial solvent.
The choices of paint for galvanized metal will depend upon both the application and service environment.
All you have to do is simply apply the vinegar to a clean rag and then wipe down the galvanized surface.
Read the directions on the container of metal paint.
The secret to painting galvanized steel is white vinegar.