Grout is the material that fills the seams between tiles. Grout is not needed to stabilize tile, because mortar already holds the tile in place without any extra help. Most grout you will be using is called sanded, meaning that grout contains sand. Sand is used by manufacturers not just because it is literally dirt-cheap but also because it is a good material for what is a simple job: filling in a hole. Sand is porous, which means that grout is porous.
Unfortunately, once the grout has been applied and dried, it is ready to absorb any liquid that comes its way, like water. By penetrating the grout with sealer first, you are pre-empting water and other liquids from penetrating the grout. Grout sealer is that simple.
Grout sealer idata:text/mce-internal,Grout%20s a necessary component of the tile installation process. It serves to prevent moisture from working its way into the grout and under the tiles.
Grout is the material that fills the seams between tiles. Grout is not needed to stabilize tile, because mortar already holds the tile in place without any extra help. Most grout you will be using is called sanded, meaning that grout contains sand. Sand is used by manufacturers not just because it is literally dirt-cheap but also because it is a good material for what is a simple job: filling in a hole. Sand is porous, which means that grout is porous.
Unfortunately, once the grout has been applied and dried, it is ready to absorb any liquid that comes its way, like water. By penetrating the grout with sealer first, you are pre-empting water and other liquids from penetrating the grout. Grout sealer is that simple.
Grout sealer is a necessary component of the tile installation process. It serves to prevent moisture from working its way into the grout and under the tiles.
