How to Paint a Wrought Iron Fence Step-by-Step

Correctly preparing a surface before painting is always important, but it’s particularly vital when dealing with wrought iron railings. Failing to properly clean your railings before applying paint can cause bubbles and flaking due to underlying rust. So when you start your project, begin by scrubbing the fence with a wire brush, which will remove the larger pieces of rust and flaking paint.

Next, to remove the rest of the peeling paint, sand the railing with medium-grit sandpaper. This process also helps create a rough surface for the paint to adhere more easily. Afterward, sweep the area and wipe the railings down with soapy water. After drying the metal off with a clean, dry rag, you can begin setting up tarps and drop cloths and applying tape around the bottoms of the railing.

Now that your surface is ready, apply a rust-inhibitive primer, which comes in both liquid and aerosol form. Aerosol primer can be applied quickly, more smoothly without brush marks, and works better for more intricate wrought iron designs. However, the spray also uses up more primer, so you’ll have to buy more cans of it.

After laying on an even layer of the primer, let it dry for between one and three hours, or whatever the product’s directions indicate.

When the surface is completely dry, start applying exterior rust-inhibitive enamel paint. Again, these types of paints come in both liquid and aerosol forms. One of the best ways to paint metal surfaces is using electrostatic painting, but you’ll need to hire the right painting contractor to complete this method. The best paint for metal railings if you DIY is aerosol paint, which makes the process go much faster. Keep in mind that it’s also messier and usually requires more paint than the liquid kind. If you’re working inside, you may want to stick to liquid paint for safety reasons, but be sure to cover all the detailed work with a foam tip brush.

No matter the type of paint you use, try to refrain from laying on one thick coat of paint. Instead, apply multiple lighter coats, waiting for the paint to dry in between coats before applying another. This creates a more even finish and helps avoid bubbling and subsequent flaking.

Basic black paint is a more traditional color choice, but brighter metallic colors can add an interesting contrast to the surroundings. Most people use a semi-gloss or gloss finish, but you can also apply a flat or satin finish.

After the wrought iron paint dries, you can use a coat of car wax to help seal the railings against moisture. This material will help them stay looking beautiful and lengthen the amount of time you can go in between touch-ups.

Metallic surfaces are always going to be more prone to rusting and chipping, especially when located outdoors. Fortunately, you can take preventive steps to minimize the damage. Wash wrought iron fences with soapy water twice a year. Wipe the railings down with a mixture of lemon juice and white vinegar, and then buff any scratches or signs of rust with steel wool at least once a year to help neutralize any damage.

You may also need to touch up the exterior paint in a few areas as imperfections arise. If regularly maintained, iron railings don’t usually need to be sanded and repainted more than once every six years. However, this timeframe also depends on the amount of exposure to moisture and direct sunlight.