Most modern wrought iron is actually galvanized steel, due to costs.
Galvanized wrought iron is often used to make decorative fences and railings for outdoor use. The process of galvanizing involves dipping the steel or iron piece into a bath of molten zinc. The zinc forms a hard coating that slows or prevents rust formation. This coating, unfortunately, is difficult to paint over, especially immediately after manufacture, according to the American Galvanizers Association. Paint adheres more easily to wrought iron pieces that are at least one year old because the protective coating wears down and roughens slightly with time. Does this Spark an idea?
Instructions
1. Remove the protective coating found on new galvanized wrought iron with a cleaner specifically made for cleaning metal, advises the Sherwin Williams website. Dip a nylon scrub brush in the cleaning solution and go over the entire piece of wrought iron. Take special care to remove the coating from joints and carvings. Paint won't adhere properly if the oily coating remains on the wrought iron.
2. Remove any rust on older wrought iron before painting. Clean flat surfaces with a steel brush or file. Use coarse sandpaper to clean ornate, curved areas. Wipe clean with a soft cloth to remove any residue.
3. Paint the galvanized wrought iron with an oil-based metal paint primer. Use a two- to three-inch paintbrush and coat the entire surface well. The primer smooths the surface, providing better paint adherence later.
4. Wait 24 hours or according to package directions for the primer to dry completely. Paint the wrought iron with an oil-based metal paint, using a paintbrush or spray painter. Allow the first coat to dry before applying a second coat.
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