Metal fences rust over time if not properly protected from the elements, leaving your yard with an eyesore. Painting your rusty fence can liven up your yard and only requires a little extra time and effort than painting a fence without rust. Help avoid future rust by painting the fence with two layers of outdoor paint to protect it from the elements.
Scrape any loose rust off of the fence with a wire brush.
Paint the rusty parts of the fence with a rust converter and allow it to dry, which may take two to four hours. A rust converter takes the place of a primer and converts the rust into a protective black layer.
Paint the fence with a coat of outdoor paint and allow it to dry, which may take four to six hours. Paint a second layer of outdoor paint on the fence for added protection and a bolder color.