How to Repair Cracks in a Granite Countertop

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Things You'll Need

  • Acetone or ammonia

  • Granite epoxy

  • Color pigment kit for granite epoxy

  • Foam brush, toothpick or palette knife

  • Granite sealer


Granite repair kits are available at hardware stores and granite specialty stores.

Repair Cracks in a Granite Countertop

Granite countertops are relatively easy to take care of, and such preventive maintenance as cleaning up spills quickly and avoiding setting hot pots on them will keep the surface in good repair. Properly installed granite countertops are not likely to crack, but if they do, there are steps you can take to repair them. Serious cracks and chips should be repaired by a professional.


Step 1

Clean the surface around the crack thoroughly with acetone or a 50-50 mixture of household ammonia and warm water. Dry thoroughly. Don't use a product that will damage the finish on the granite.

Step 2

Mix granite epoxy according to the manufacturer's directions. Mix only enough hardener and resin to use in 10 or 15 minutes.

Step 3

Use the color pigment kit to add color to the epoxy, again following the manufacturer's instructions.

Step 4

Spread epoxy in the crack with a small tool, such as an artist's palette knife or a foam brush. Use a toothpick in very small cracks. Quickly wipe up any messes because once the epoxy hardens it will be very difficult to remove.

Step 5

Seal the crack in the granite with granite sealer. Apply the sealer, let it set for 10 to 15 minutes, then apply another coat. Let the crack repair cure for a day.


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Meg Jernigan

Meg Jernigan has been writing for more than 30 years. She specializes in travel, cooking and interior decorating. Her offline credits include copy editing full-length books and creating marketing copy for nonprofit organizations. Jernigan attended George Washington University, majoring in speech and drama.