Your cast-iron sink is used many times a day, for food preparation, doing dishes and washing hands. Once you spot a chip, that annoying little imperfection will nag at you every time you use your sink. You don't have to live with the chips in your sink; they can be patched with the right repair kit. You can consult a professional to repair your chipped sink or you can tackle the project yourself in a few simple steps.
Things You'll Need
- Degreasing cleaner
- Repair paste
- Putty knife
- Medium-grit sandpaper
- Fine-grit sandpaper
- Spray enamel
Dip a clean rag in degreasing cleaner. Remove oils and residues from the area around the chip.
Scoop a small amount of repair paste onto a putty knife. Slide the knife across the chip to fill with paste. Slightly overfill the hole so that the paste dries above the surface of the sink. Allow the paste to harden for 30 minutes to two hours.
Sand the repaired area with medium-grit sandpaper. Eliminate the excess putty from the surface of the chip.
Sand the spot again to smooth, using a finer-grit sandpaper. Run your bare hand over the sink's surface. The surface will be smooth. Wipe away any sanding dust you have created with a damp rag.
Spray the chipped spot with enamel spray. Hold the spray nozzle down continuously and spray in a back-and-forth motion. Allow the first coat to dry to the touch. If you can see the color variation beneath the enamel, apply another coat of the spray. Allow the enamel to harden for four days before using the sink.
Tips & Warnings
- If the color of the spray enamel is not a perfect match with your sink, you may need to consider refinishing the entire sink. Sinks can be painted by a professional or a homeowner with epoxy primer and acrylic topcoat.
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