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How to Repair a Crack in a Corian Sink

Updated February 21, 2017

Corian is a surface material produced by DuPont, a chemical manufacturer headquartered in Wilmington, Delaware. The synthetic material is "nonporous," making it impenetrable to stains, according to the DuPont website. Corian sinks have a durable, easily cleanable surface and come in a variety of colours. However, like any other manufactured material, a Corian sink can become cracked. Fortunately, cracks in a Corian sink can be patched.

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  1. Clean the Corian sink with dish detergent using a stiff-bristled brush to remove any soap and/or toothpaste build-up on the surface. Use warm or hot water for best results. Let it air dry.

  2. Sand the cracked area of the Corian sink with fine-grit sandpaper to smooth it and remove any bumps or splinter-type protrusions.

  3. Spread Corian seam adhesive over the crack, extending the adhesive over the edges of the crack and filling it up using an applicator or plastic putty knife. Allow to dry for as long as suggested by the manufacturer. For best results, use a coloured adhesive that best matches your Corian sink.

  4. Sand the patch gently to make it flush with the surface of the Corian sink. Rinse thoroughly thereafter with warm water and a sponge.

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Things You'll Need

  • Dish detergent
  • Stiff-bristled brush
  • Fine-grit sandpaper
  • Corian seam adhesive
  • Plastic putty knife or applicator
  • Sponge

About the Author

Owen Richason grew up working in his family's small contracting business. He later became an outplacement consultant, then a retail business consultant. Richason is a former personal finance and business writer for "Tampa Bay Business and Financier." He now writes for various publications, websites and blogs.

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