Rust on a steel door can be frustrating to remove without the right products and know-how. You may not believe it, but it takes only a few simple steps to remove rust from a steel door.
Clean the Door
Start by using a detergent to remove dirt and any other debris that might be on the door. Anything that is on the surface of the door can cause water to be trapped along the steel, providing an opportunity for more rust to form on the door. Rinse away the debris and dry the door if possible to help prepare for the next step.
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Wire Brush Removal
Using a wire brush or a steel wool sponge, gently scrub at the rust to remove it from the surface of the door. This might take off some of the paint on the door as well, but paint is easy enough to replace once you are done cleaning. Be gentle to avoid scratching the surface and leaving a permanent mark on the door. Rubbing in small circles will help to remove the rust completely. Use sandpaper as the rust gets closer to the surface of the door. If you can't see the surface feel free to scrub harder as the damage won't be conspicuous.
Clear Away Dust
Once you have removed the rust from the door, take a softer brush and brush away the rust dust that has accumulated. You want to brush this dusts away as this will also scratch the surface of the door if it's just wiped away. Once you've brushed the dust away, then you can put on rust sealant to prevent rust from accumulating on the door again.