If you are reading this product review, you must be looking for the best grout sealer to buy. If so, then you have come to the right place! Choosing the right grout sealer to buy is a difficult choice to make, especially when you are new to the whole idea of applying them to your indoor and/or outdoor tiles. Tiles, floor tiles specifically, absorb the most shock and deal with the most damage inside the house. After all, we literally STEP ON them.