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Do Granite Countertops Need To Be Sealed ?

Nov 28, 2017

Granite itself does not have the ability to waterproof.

Granite is a nice natural stone material that applied in many homes. It can be used on a wide range of surfaces in the home, and it is most commonly used as a countertop material in bathrooms and kitchens. Available in many different colors and veins, the variety makes it suitable for many homes regardless of decoration. It also has an incredibly luxurious appeal and long-lasting durability that adds value and appeal to the home. In addition to keep granite clean, it requires regular care and maintenance if you want it to provide you with decades of impressive use in the home. One of the most important steps to take is to seal the granite regularly.


Because granite is a very hard natural stone material, you may think it would withstand all types of wear and tear you impose on it. However, if unsealed, acidic substances can easily deteriorate the stone over time. Etching may occur through exposure to acidic cleaning agents such as vinegar as well as everyday household items like lemon juice, and stains can occur from various food substances that have color in them. Sealing the granite is a great way to protect the stone from unnecessary exposure to these common elements. However, water, acidic substances, and even general use can wear away the seal, and it will need to be reapplied periodically.


Some granite countertops are sealed at the time of installation, which means you might not have to worry about sealing them again right away. However, the frequency with which you need apply new sealant can vary based on the type of sealant used and type of stone you have. In addition, exposure to acidic substances plays a role in frequency of sealing. Some homeowners seal their granite every year, and others do it every three to four months. However, it’s important to note you cannot over-seal stone, so it’s best to err on the side of caution and seal it as frequently as possible. You can perform a water test on the counter to determine how quickly water is absorbed into the stone. Pour water in several locations and let it sit for 20 minutes. If the water has created a dark mark or ring, the time has come to seal your counters.

granite countertop water test

Granite seals is divided into two kinds of water-based and oily, the ultimate effect of the two uses are the same. The difference is the difference between the installation process, the ground is recommended on the granite pavement water-based protective agent, the wall of the water and oil can be used.

There are two common brushing and soaking process, the granite processed before brushing to be dried through (there is no moisture) brush again, to be dry and then brushing six protection.

To check if there is a product to be protected, pour a little water or colored water on the granite surface or bottom to see if it can form dripping drops. 

After a dozen minutes, use a cotton cloth to apply clean waterdrops. Granite surface is not infiltrated or stain, it shows that granite seal treatment is in place.If you can not form a drop of water, a large infiltration of water stains, that is, protection is not done.

Seal test