Porcelain sinks are known for their beauty and protective surfaces. They can however be cracked, scratched, and chipped. Fortunately, you can do simple porcelain sink repairs yourself. If the damaged area is deep or large, a professional you may need to contact a professional to do the repair.
Step 1 - Sand and Clean the Repair Area
With the sink clean and dry, sand the repair area with the medium-grit sandpaper. Use caution so as not to scratch the good porcelain that is surrounding the repair area. This will only weaken its finish and cause more damage. Sand the repair area until smooth.
After you have finished sanding, take one of the clean cloths and apply rubbing alcohol. Use this to clean the sanded repair area of any dirt or debris. Then allow the area to dry thoroughly.
Step 2 - Mix and Patch
Using the piece of glass or tile as a palette, mix the oil-based paint with the repair compound using the wooden stir stick. Try to match the color to that of the sink. You may need to add more or less paint to get the color right.
Once you are satisfied with the color, use the razor blade to apply the compound mix. Apply it to the repair area as needed. Use the edge of the razor blade to remove any excess and to smooth the edges with the surrounding surface.
Step 3 - Clean the Edges
After the mix has completely hardened, soak a cotton swab in fingernail polish remover. Use the polish to clean the edges of the repair area. This will remove any fine amounts of excess compound mix and help to blend the repair with the surrounding porcelain. Allow the polish remover to dry.
You can also use the fingernail polish remover and a clean cloth to remove any compound mix you may have gotten on your hands, etc.
Step 4 - Keep the Repair Area Dry
After repairing the porcelain sink, it is very important to remember to keep the repair area dry for a day or two. This will allow the repair to completely cure. You will likely have to use another sink basin since you need water out of the repair area in the meantime. Failure to do this can cause the repair to fail.
After a couple days of cure time, your porcelain sink will be ready for use again. All it took was four simple steps to have it looking new again, and at a minimal cost, too!