Paintable Galvanized Sheet Metal

The secret to painting galvanized steel is white vinegar.

Paintable galvanized sheet metal.

Steel pipe steel round tube. Electro galvanized steel sheet plate. Click image to enlarge. Once the metal has dried dampen a cloth with white vinegar and wipe the surface down.

Remove any handles or other attachments from the metal. Steel rectangular square tube. Here s how to paint galvanized metal. To paint galvanized steel start by applying a latex based primer evenly across the surface to stop the paint from soaking into it.

Galvannealed steel is readily paintable. Rinse the metal and let it dry completely for several hours. As a result some amount of powdering can appear when the metal is formed. You first are advised to prepare the surface of the item to be painted so that the paint for galvanized metal stands its best chance of looking good for several years.

Paint applied over this oily surface or clear passivator will peel quickly. Galvannealed sheet can be formed much in the same way and by the same variety of processes as galvanized sheet. Steel roofing siding. The acid in the vinegar will act to etch the metal and help the paint adhere.

Wash the metal thoroughly with hot soapy water. If you have a kitchen then you probably already have this handy solution. However the zinc alloy coating on galvannealed sheet is more brittle than the zinc coating of galvanized sheet. Galvanized sheet metal can be readily painted before or after fabrication when the proper pretreatment is performed.

Clean new galvanized metal surfaces with a water based cleaner degreaser to remove any oil or and contaminants. Bituminous latex acrylic and vinyl paints tend to adhere well to galvanized metals. Rinse the metal with a weak solution of water and ammonia and allow it to dry. 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.