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How To Seal Granite Countertops

Granite countertops don’t necessarily need to be sealed because they are naturally waterproof. However, sealing your countertops can help ensure that they last as long as possible and continue to look great. Sealant will help countertops keep from being stained if a colored liquid should be spilled on them, or from being damaged by grease. Follow these steps to seal your granite countertop yourself. 

1. Find the Sealant

Go to a hardware store or a home store and purchase a sealant for your countertop. Look for a sealant that is being marketed as resistant to both liquids and oils. While you’re at it, purchase a granite countertop cleaner.

2. Clean the Countertop

Apply some of the cleaner to a rag and begin to move in small circles down the entire length of the counter. You want to make sure that you don’t inadvertently leave any foreign particles on the surface of the countertop because they will be sealed into the counter and will make your counter seem bumpy. Finish cleaning the entire tabletop once first, and then clean it again if there still seem to be leftover particles.

3. Dry the Countertop

Then dry the countertop. The sealant will not be able to adhere to the table properly if it is wet.

4. Start Sealing

Next, you need to start sealing the countertop. Many granite sealants will come with an applicator in the form of a brush, but if yours does not, take a clean, dry rag, and put sealant on one corner. Then either brush or rub the sealant onto the granite. Make sure that you work in small portions and completely finish one area of the counter before moving on to the next one. Once you’ve covered the entire table once, wait for between forty-five minutes to an hour for the first layer to set. Then, perform the action again and add the second layer of sealant.

You want two layers of sealant in case you accidentally missed part of the counter. This way, you increase the chances that all parts of the counter will be totally sealed.

5. Allow the Counter to Set

Allow the sealant to set overnight. Do not use the counters until this period of time has passed. 

6. Check For Touchups

Once you’re done sealing, spray your counter with water. If the water beads up and stays at the surface of the table, you know that you’ve done your job. If the water is absorbed, then you might need to do another layer of sealant.

For more information, talk to a granite countertop company, such as Home & Kitchen Supply.