Painting Galvanised Steel Sheet

The enamels in alkyd paints can react with the slick zinc finish on a galvanized steel surface leading to poor adhesion and peeling.

Painting galvanised steel sheet.

Once the metal has dried dampen a cloth with white vinegar and wipe the surface down. The acid in the vinegar will act to etch the metal and help the paint adhere. Despite the fact that this preparation process has been available for some. Clean new galvanized metal surfaces with a water based cleaner degreaser to remove any oil or and contaminants.

How to prepare galvanized steel for painting 1. Clean the surface the goal is to remove any dust dirt or other particulate buildup that could affect the texture of. When painting galvanised steel you have to be aware that some primers and metal paints are not suitable. T wash or its proprietary equivalent.

You ll find many brands of. For the most dependable results look for paints that are formulated specifically to bond to galvanized steel. Avoid using alkyd based paints such as spray paint on galvanized steel. You can still add a coat of paint to your galvanized metal surface as long as you have a few important household tools and you follow these simple steps.

Etch primers have also been used successfully. You can use a dedicated galvanised metal paint or you can use a suitable primer. Use a water based degreaser to wash off the surface oil and passivator layer. You just cleaned off the oil layer but you should still sand the galvanized surface so the paint adheres well.