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How to Seal a Granite Countertop

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How to Seal Granite Countertops

Granite is the perfect material for countertops in your home. The material is elegant, durable, easy to maintain and cost effective. The countertops should be sealed so they will resist dirt and spills that can cause staining and scratching on the surface.

How to Seal Granite Countertops


Materials Needed



  • Bucket

  • Mild liquid dish detergent

  • Sponge

  • Towel

  • Sealer

  • Paintbrush



  1. Prepare the countertops for sealing by thoroughly cleaning them to remove any dirt, dust, debris or stains. You do not want any of those things under the seal. Remove all items from the countertops.

  2. Fill a bucket with warm water and add enough mild liquid dish detergent to create a sudsy cleaning solution. Use a sponge and the cleaning solution to clean the counters.

  3. Pour out the cleaning solution. Rinse the bucket as well as the sponge to remove all of the soap from them. Fill the bucket with clean water. Use the clean water and sponge to completely remove all of the soap from the countertops. Dry the countertops with a clean towel and allow the countertops to further dry by air.

  4. Pour the sealer over the countertops. Use a paintbrush to evenly spread the sealer to cover the entire area. Allow the sealer to absorb into the countertop for 45 minutes.

  5. Apply a second layer of sealer and spread it evenly over the countertop using a paintbrush. Allow the sealer to completely dry. The drying time will vary according to the brand of sealer you chose.