Is it necessary to seal granite countertops?
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: Marble Institute of America].
Generally, you should seal most kitchen granite countertops annually..
How do you know when granite needs to be resealed?
One test for determining whether or not your countertops need sealant is to add several drops of water on top of the granite, in several locations. Let it sit for 30 minutes. If the water has penetrated the surface within and has darkened the granite, it is time to reseal.
How long does granite sealer last?
3-5 yearsSealing Frequency Of course, porosity of the stone and sealer quality can vary, but most granite countertop sealers should last 3-5 years and some are rated for 10 years if the stone is diligently and properly cared for.
What happens if you don’t seal granite?
What Happens If You Don’t Seal Granite Countertops? If you don’t use a granite sealer on your countertops (or you wait too long before resealing granite countertops), they will: Absorb food, grease, and liquids — causing set-in stains on your countertop. Absorb water — making the countertop always look dirty.