Why Does Granite Need To Be Sealed

Although most granite countertops don t need to be sealed it does help the stone resist dirt and spills which can cause etching and staining source.

Why does granite need to be sealed.

If you re going to place food or drinks on a granite table it s a good idea to seal it. You need to see how absorbent your granite countertop is at the moment the more absorbent it is the more it needs to be sealed. You should seal granite when needed and not based on some arbitrary schedule. Sealants block liquids from seeping into the granite.

I didn t realize that certain granite needed to be sealed to prevent water damage as opposed to a quartz countertop. We are finally at a point that feels like we can afford it so we are going to pull the trigger. Here s why sealing granite countertops can preserve the beauty of the material for many years to come. At least once every five years a sealant should be applied to prevent staining from oils water and other liquids.

As mentioned earlier dark stone is often more dense and won t need sealing but lighter color granites are often more porous and will definitely need to be sealed. It could be that hairline cracks occurred during installation or from standing on the granite or from some impact. By its nature granite is moisture resistant however it s also porous. Here s how to know for your granite.

If your granite countertop is properly sealed liquids and oils will bead on top of it rather than seep into the stone. Left unsealed granite as a natural stone in nature easily absorbs moisture and liquid. Well most granite kitchen countertops do need sealing to help prevent stains but sealing granite won t prevent cracks. Limestone and marble tables should also be sealed to provide some protection.

This is why sealant is so important and manufacturers of granite surfaces take an extraordinary amount of care to make sure sealant is done to near perfection. Granite is durable but stiff and brittle. Granite like many natural stones is porous. Marble institute of america.

However how often you need to seal it will vary. Granite countertop cracks occur from trauma. Because granite is a natural stone and is generally penetrable within its porous surface sealants are an easy and effective way to protect granite countertops. Some people seal their granite countertops once every six months to a year though stone can never be oversealed.

Professionals agree that darker color granite will require less sealing than lighter slabs because dark granite is denser and less porous. Granite is a porous material which means the material will absorb liquids on its surface to some degree. Most but not all granite countertops will need sealing upon installation and then resealed every 1 5 years depending on the color and porosity of the granite the quality of the sealer and proper sealant application. There are 2 ways to test a granite countertop or any stone countertop for absorbency and also determine if the stone is mixed with calcite or other minerals that are sensitive to acidic spills.