How Do I Repair Rust on a Porcelain Sink?


Porcelain sinks, while durable, are not resistant to stains such as rust. Rust normally occurs in porcelain sinks when too much iron is present in the water. As the standing water evaporates in the sink, iron is left behind and corrodes the sink with rust stains. The rust requires abrasive tools to remove it completely, but without damaging the porcelain surface.

Things You'll Need

  • Lemon juice
  • Salt
  • Paper towels
  • Cloths
  • Pumice stone
  • Bathroom cleaner
  • Towel
  • Mix 2 tbsp. of lemon juice with 1 tsp. of salt. Apply the lemon juice mixture to a cloth and rub it into the rust on the porcelain sink.

  • Scrub the sink and and pick up the loose rust particles with a damp paper towel.

  • Pour 1 cup of lemon juice onto a rag and sprinkle salt generously over the top of the lemon juice. Place the cloth on top of the rust, soaking the stain. Allow the cloth to remain overnight, and scrub the stain the next morning. Remove the loosened rust from the sink with the paper towel and wipe the lemon juice from the sink with a wet cloth.

  • Rub a pumice stone over any remaining rust. Wet the stone and gently rub back and forth over the rust. Remove loosened rust from the sink. Continue wetting and rubbing the pumice stone over the rust until completely removed.

  • Clean the porcelain sink with a bathroom cleaner and a wet cloth. Rinse the soap from the sink with cool water, and dry with a clean towel.

Tips & Warnings

  • Wipe the porcelain sink with a towel after each use to prevent rust stains from forming.
  • Do not allow rust particles to go down the sink as it may clog the drain.

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  • Photo Credit water in a sink image by terex from
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