Yes not every type of grout needs to be sealed.
Do you need to seal floor tile grout.
Grout may also discolor.
Sealing the grout helps prolong the look texture and consistency of your grout and it prevents mildew and mold.
It s something you should do to keep your grout looking it s best.
Grout needs to be sealed.
Whichever tool you choose.
Adding a grout sealer protects your grout so it s water resistant and will repel moisture and germs.
Most installers of tile floors do not seal them because grout has to cure first.
For glazed tiles where sealer won t adhere you ll need to seal only the grout lines using an applicator brush or specialty applicator bottle with a rolling wheel on top.
Your grout will look better and last longer.
Unsealed tiles such as clay and natural stone.
Epoxy grout is often used on non porous surfaces such as glass and helps protect against stains and water.
If you don t apply sealer first grout will stick tenaciously to the tile surface and it will be extremely difficult to get off.
For example grout epoxy grout does not need to be sealed because it is not porous.
Epoxy grout exception epoxy grout is a tough water resistant material that doesn t require sealer but it s not right for every tile application.