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How to Seal Granite Countertops

How to Seal a Granite Countertop

Granite countertops make a kitchen look beautiful and elegant. They are durable and easy to clean. Granite does not scratch easily but they do tend to crack. Every year you should seal the countertops so they will last for a long time.

How to Seal a Granite Countertop


Materials Needed



  • Painter’s tape

  • Bucket

  • Mild liquid dish detergent

  • Sponge

  • Cloth

  • Sealer

  • Paintbrush



  1. Make sure the sealer you choose is made especially for granite countertops. You can ask the clerk at your local hardware store if you are unsure which sealer to choose.

  2. Take off all of the items from the countertops. You will need to cover the entire counter to properly seal it. Place the items to the side. Cover any electrical outlets with painter’s tape.

  3. Fill a bucket with warm water and mild liquid dish detergent. Use the cleaner and a sponge to thoroughly clean the counters.

  4. Pour out the cleaning solution. Rinse the bucket and the sponge. Fill the bucket with clean water. Rinse the soap from the counters with the clean water. Wipe the counters with a clean dry cloth and allow the counters to further dry by air.

  5. Pour the sealer over the countertop. Use a paintbrush to spread the sealer evenly over the countertop. Allow the sealer to dry for five hours. Apply a second coat of sealer. Allow the sealer to completely dry for 24 hours. Replace all of the items on the countertops. Remove the painter’s tape from the electrical outlets.