How To Seal Granite, Marble, & Other Natural Stones | Marble.com

How To Seal Granite, Marble, & Other Natural Stones | Marble.com
One of the most important elements to maintain your natural stone countertop is to properly seal it. Normally your granite countertops are sealed when they’re installed, however, to reinforce their ability to protect against stains, we recommended sealing them bi-annually.

Every stone differs in mineral composition so the periods between sealing will differ as well. One way to test if your countertop needs to be seal to put a few drops of water on the surface. If they stay beaded up, the sealer is doing its job. If they start to spread and seep into the surface, it’s time to reapply the sealer.

There are numerous sealers available but in our experience the one that we have found to be the best is Superior Zero Ultra Stone Protector, which can be found at MrStone.com.

Before starting any work with the sealer, always carefully read the instructions and warnings on the label. For the Superior Zero Sealer, the application is very simple. First remove all objects from the countertop and clean the surface – let it dry for a few minutes. Apply a generous coat of sealer so that the surface is completely covered. If you have a large kitchen, then work in sections.

Then let the sealer sit for 15 minutes and absorb into the stone. If during that time, you notice the sealer seeping into the surface, then apply another coat. It’s important not to let the seal dry completely on the surface that can create a hazy residue, which is very difficult to remove. If this does happen, however, apply more sealer, wait a few minutes and then wipe it dry with a paper towel or dry cloth. After the 15 minutes have passed and the sealer is still sitting wet on the surface, you can wipe it off.

That’s it! You’re done. It is recommended to let the sealer cure for one hour before using your countertop and you should avoid cleaning it for the next 24-hours. There’s no exact formula on how often you should seal your countertop because as we mentioned before, different minerals compositions require different care, however, we have found it best to seal natural stone countertops bi-annually. This will ensure that you will enjoy the beauty and the elegance of your countertop for decades. Now that you know how to seal your countertop, the next thing to learn is how to seal it.


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