It is necessary to use the best granite sealer after applying the best granite cleaner. Sealing your granite or marble countertops and floors is just as important as cleaning them.
When you install granite or marble for the first time, you must first seal it thoroughly to prevent oils and stains from seeping through.
If you are using the best granite sealer, it will like last a long time, upwards of a few years.
But before you seal, you must first clean and/or polish your stone. Check out my reviews of the best cleaning and polishing products here.
Top 5 Best Granite Sealers on the Market
You can usually tell if your granite or marble needs sealing if it looks dull. But the sure way to tell is the water bead test.
Simply place a drop of water on your granite: if it beads up you do not need to seal your granite and if it darkens and gets absorbed into the granite then you definitely need sealing work.
The lemon juice test is also a good way to tell if a particular piece of stone is safe for kitchen use.
The purpose of sealing your stone countertop is to prevent it from staining and to prevent dirt and debris from getting lodged inside.
Since granite and marble are both porous rocks, bacteria and debris can slowly creep inside the pores of these rocks.
A sealant will react with the rock and seal these holes, preventing other particles from entering.
From time to time, this sealant will break down and will need to be re-sealed.
This page will walk you through the fundamentals of granite sealing, how to seal granite, and show you the best granite sealer reviews. I have tested a lot of sealers in my life and here are my top picks: