Then clean the tile before you seal it.
How to apply grout sealer to wall tile.
Apply your sealer to the lines and joints of the grout.
The best way to prevent this is to seal your new grout and repeat as needed every year or so for wall and floor tiles that don t get much moisture and more often for grout in the shower or on.
Choose a solvent based sealer for ceramic and porcelain tile or a water based sealer for natural stone tile.
Whether you are repairing or replacing tile and grout new or old sealing them is the last and usually most overlooked step.
Step 3 application.
Sealing your tile can help keep it protected from scratches and cracks and make it look more vibrant.
Applying a tile sealer is also really easy to do.
The spray on variety is the most common although some types can be applied with a sponge or brush.