Sealing granite countertops is a question that is very common among homeowners. Precision Countertops will break down everything you need to know about sealing granite countertops the right way. A sealer is a substance or solvent that goes into the countertop surface to prevent it from staining due to spills. The Sealant will go into the pores and will plug up the pores to help keep the countertop from etching and staining. Naturally, granite is moisture resistant however, it is also porous. Sealing granite countertops will ensure that they are nonporous and free of common stains. Properly sealed granite countertops cause liquids to bead on the surface.

Choose The Right Sealant

The goal is for the sealant to deeply penetrate the surface so the chances of stains can significantly decrease. This will also keep out the bacteria and maintain its shine. When you are searching for granite kitchen counter sealants, look for ones that are known as “impregnating stone sealers.” These are the top sealants picked out by professional granite, marble, & slate countertop experts. You want to go with a product that will keep out moisture so that the risk of bacteria and mold is eliminated.

Sealant Features To Look For

• Dries in five to ten minutes
• Help surface repel oil and water-based liquids
• Dries invisibly without changing the stone color
• Coverage of 160 to 180 sq. ft. per quart
• Can be used on all other stone surfaces

How to Seal Granite Countertops

Initial Application: Penetrating Sealers

Before moving forward, note that sealing over top of pre-existing messes or stains can cause them to be permanent.  Be sure to clean granite before sealing, getting rid of any unwanted blemishes or messes.

Penetrating sealers come with specific instructions, so follow your particular products’ instructions carefully.  The process generally goes as follows:

1. Remove all debris, stains, and other messes before sealing.  Thoroughly clean and dry the granite before sealing.

2. Ventilate the area with windows or fans

3. Wearing gloves as protection, apply the sealer

4. Allow to sit for 3-5 minutes

5. Wipe off excess residue

6. Let the sealer dry

After most applications, penetrating sealers generally recommend leaving the product to dry for a specified period of time and re-applying the sealer afterward. It’s important to re-apply the sealer for multiple coatings.