Unsealed tiles such as clay and natural stone must be sealed.
Sealing ceramic tiles before grouting.
When you re finished cleaning the grout allow the area to dry for 45 minutes before sealing.
Existing grout should be cleaned and dried before resealing.
Epoxy grout is a tough water resistant material that doesn t require sealer but it s not right for every tile application.
If they are touch up grout and wait the requisite 48 to 72 hours before sealing.
Next choose your sealer based on the type of tile you have and its.
If the tile is unglazed and porous as mostly all travertine is then you will need to seal the tile before you grout it so that the grout does not soak into the tile and cause it to become dull.
Seal the tile not the grout many tiles especially natural stone such as slate marble and limestone are porous and need to be sealed.
Allow new grout to cure for 48 to 72 hours before sealing.
Make sure grout lines aren t cracked chipped or otherwise compromised before treating with a sealant.