Eliminate Rust Spots From A Metal Garage Door And Protect Its Surface With Rust-Resistant Paint


If your garage's metal door has rusted spots on its surface, learn how to eliminate them with the following steps. Once finished, add a coat of rust resistant paint to its surface to keep the door protected from moisture-related damage in the future.


  • paintbrush
  • naval jelly
  • scrub brush
  • electric sander
  • sandpaper
  • water hose
  • mild detergent
  • painter's tape
  • exterior spray paint (rust-resistant)
  • drop cloth

Remove Rust Spots

Close the garage door and lock it so that it doesn't accidentally open while you are repairing it. Use a paintbrush to apply an even layer of naval jelly to each rust spot. Wait a few minutes for the product to penetrate the rust. The rust will begin to dissolve after time passes. Move a scrub brush vigorously back and forth over the rust spots to assist with removing them. Once you are unable to remove anymore rust, eliminate the rest of it with a hand sander.

Attach a piece of coarse grit sandpaper to the tool and move it in straight lines over the rust. Use firm pressure as you move the tool over the metal surface. Once the metal feels smooth to your touch, lightly sand the same areas on the door with a piece of fine grit paper. Rinse the door off with a water hose to remove any residue that remains on the metal's surface.

Eliminate Stains And Apply Rust-Resistant Paint

If there are any stains on the metal surface, clean them with mild detergent, water, and a scrub brush. Rinse the door off once it is dirt-free and wait for the metal to dry completely. Place pieces of painter's tape on any trim and around windows that are on the door. Lay a drop cloth in front of the door. Apply an even coat of rust-resistant spray paint to the door's surface. Begin in one of the door's corners and move the spray paint container from top to bottom.

Wait a couple hours for the paint to dry. Add a second coat of paint if you would like the color of the paint to appear darker and more even. After the paint has dried, carefully remove the pieces of painter's tape that are on the door. The door's painted surface will prevent moisture from penetrating. As a result, rust will not become an issue in the future. Keep the door maintained by cleaning it regularly with detergent, water, and a scrub brush.

For more information on garage door repair, contact a company like Unifour Door Systems LLC.


9 December 2015

repairing garage door damage from auto impacts

I thought the most difficult part of teaching my son how to drive would be out on the roads, but I didn't think about what he could do to my garage door before he even left the driveway. It took one small tap with the car to damage the garage door. Even though the garage door itself looked to be fine, the impact had caused some damage to the mechanical components, and we couldn't use the garage for a while. My blog explains what we had to do to make the repairs and will give you some tips for avoiding this type of accident around your home.