How to Fix a Cracked Granite or Corian Countertop

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Granite and Corian may look similar but are two very different materials. Granite is a natural stone often used for countertops due to its appealing appearance and durability. Corian is made from a mix of clay, acrylic resin and pigmentation. Corian is durable as well and can be pigmented to strongly resemble granite; however, if either surface cracks, the required repair methods are similar but slightly different. Fixing a cracked granite or Corian countertop helps extend the life of the counter because the repair prevents the crack from spreading.

Things You'll Need

  • Sponge
  • Mild detergent
  • Towel
  • Granite epoxy repair
  • Fine sandpaper
  • Ammonia-based cleaner
  • Blue or gray Corian abrasive pad
  • Epoxy filler

Granite

  • Clean the granite with a sponge soaked with warm water and mild detergent to ensure the crack does not contain any dirt or debris that will interfere with the repair. Dry the stone with a towel.

  • Fill the crack with a granite epoxy repair. Some epoxies are clear and naturally blend in with the surrounding stone; others have colors added so the epoxy matches the granite color as closely as possible. Follow all instructions on the package for best results and remove any excess with a razor before it dries.

  • Sand the repair with a fine sandpaper to even out the repair and make it even with the surrounding granite. Wipe away any loose sand with a rag.

Corian

  • Clean the Corian with an ammonia-based cleaner prior to repairing. DuPont recommends avoiding glass cleaner because it leaves a residue. Rinse the counter once cleaning is complete and dry the surface with a towel.

  • Sand down small cracks with a blue or gray abrasive pad that is included in a Corian repair kit. Sand down the crack if it is shallow to make less visible.

  • Insert an epoxy repair into the Corian crack and wipe away the excess with a razor or rag. Allow the repair to dry.

Tips & Warnings

  • Avoid placing hot items on granite or Corian to prevent heat stains.

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References

  • Photo Credit Jupiterimages/Photos.com/Getty Images
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