Rust Stains: Removal

Do-It-Yourself Project

A common problem many homeowners all over the country experience is the appearance of rust stains on painted surfaces inside or outside the home. The problems start with the use of uncoated steel nails in areas that experience a lot of moisture. The uncoated nails usually cannot be removed, but there is a solution to this problem.

Step 1

Begin by inspecting the area of discoloration to determine if there is a source for the moisture, such as a leaky pipe, sweating or condensation. If it is possible to locate the source of the problem, try to fix it. If it is an outdoor problem that experiences seasonal changes and temperature fluctuations, there is obviously nothing you can do. Use a mild household detergent to remove any unsightly areas. To get rid of mildew, scrub the area with a combination of water and household bleach, or use a commercial cleaning product. If your area is really dirty and discolored or older and neglected, you may have better results using a power washer. Power washers are available at most rental centers, but please read and follow all safety instructions prior to use. Let dry and repeat if necessary.

Step 2

With any project safety comes first. Since the process of sanding involves the removal of material it creates airborne dust. We recommend safety glasses or goggles, work gloves, a work apron or close fitting clothing and an approved dust/mist respirator.

Step 3

Remove any stained paint or remaining discoloration around the area using sandpaper or a wire brush. All-Purpose sandpaper is ideal for this application because it is designed for light sanding or cleaning of surfaces and moderate removal of coatings or rust (Please refer to the grit guide below for more information). Another option is using Norton's Rapid Strip drill mount abrasive. Rapid Strip is a unique, semi-flexible silicon carbide abrasive that resists loading and conforms to edges and contours without gouging. It is easily mounted to any drill. Sand down to the nail head, then sand the nail head itself to remove the built-up rust.

Step 4

Once sanding has been completed the next step is to use a nail punch to countersink all nail heads completely. The nail heads need to be approximately 1/8" below the surface.



Step 5

Next apply a layer of undercoating to the area. This will stop the rust from advancing.

Step 6

After area is coated and dry, fill the countersunk hole with outdoor caulking compound. Allow the compound to dry thoroughly. Sand the compound down to a level equal to surrounding area using 120 grit all-purpose sandpaper. Paint the area with corresponding areas color and let dry.

Norton Project Planning Form