How to repair a chipped porcelain sink

Written by wendy hughes
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It's easy and economical to repair chips in porcelain sinks. As with most refinishing jobs, the key is in the surface preparation. A stainless steel sink that has a porcelain veneer chips relatively easily when the steel flexes. Most chips result from dropping heavy objects on the porcelain, so store such items where they cannot be knocked into the sink. With just a little effort your sink will look good as new.

Skill level:

Things you need

  • Degreasing detergent
  • Soap-scum remover
  • Sponge (made for sinks and tubs with one scrubbing side)
  • Absorbent towel
  • 400- to 600-grit wet and dry sandpaper
  • Porcelain chip repair kit or epoxy chip repair paint
  • Toothpick

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  1. 1

    Scrub the sink with degreasing cleaner. Rinse the sink. Scrub again with soap-scum remover. Rinse thoroughly and dry with a towel. Let the sink air dry completely.

  2. 2

    Sand the chip and surrounding area with 400- to 600-grit wet and dry sandpaper to remove all rust and give the surface enough tooth to hold the epoxy paint. Wipe off all dust before proceeding.

  3. 3

    Touch the very tip toothpick on the paint to pick up a small amount. Use the match or toothpick to apply the paint to the centre of the chip. Smooth the paint to cover the chip and sanded area. Allow it to dry according to package directions.

  4. 4

    Reapply thin layers until the chip is filled in level with the surface of the sink. Allow the patch to dry, then lightly sand to ensure proper adhesion of each layer.

  5. 5

    Keep the sink dry and undisturbed for at least 24 hours after the last coat of paint is applied.

Tips and warnings

  • Do not attempt to fill deep chips in one coat. A thick coat will chip off easily.
  • Make sure to remove all rust before patching. Any traces of rust left behind will continue to corrode the metal, causing the repair to fail in a short time.
  • Remove all sanding dust and grit before patching so the finish will be smooth.

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