Things You'll Need:
- Brush-on Grout and Tile Sealer
- Spray-on Grout and Tile Sealer
- NIOSH Approved Respirator
-
Step 1
If the tiled area has been used for some time, clean the grout and tile to remove any wax, film or grime.
-
Step 2
You may choose to seal grout using a sealer that is only applied to the grout lines. This would be done if the ceramic tiles are glazed since they are already sealed. The milky colored sealant is applied to the grout lines using a tip applicator or a small brush. Any excess may be wiped off the surrounding tile. The process should be repeated once per year.
-
Step 3
Even if you have ceramic glazed tiles you can seal tile grout using a spray-on solvent-based grout sealer. The sealer will absorb into the tile grout and any over-spray will evaporate. Any sealer that does not immediately evaporate will eventually wear off the glazed tiles.
-
Step 4
Spray the grout and tile sealer 10-16 inches from the tiled surface. Wipe excess off vertical surfaces and allow to dry for at least 24 hours. Test the sealed grout lines by placing drops of water on the grout. If the droplet is absorbed, apply a second coat of sealer.
-
Step 5
Since the spray-on grout and tile sealer is solvent-based you must use it in a well-ventilated area with open windows and fans to circulate fresh air. Since showers and bathrooms are usually small and enclosed, wear a NIOSH approved respirator as shown in the photo. (You can find cartridge respirators at home improvement or hardware stores. Goggles and gloves are also recommended.) Unlike the brush-on grout sealer mentioned in step 2, some spray-on solvent-based grout and tile sealers claim an expected wear of 20 years.
