Seal the tile not the grout many tiles especially natural stone such as slate marble and limestone are porous and need to be sealed.
Sealing ceramic tiles before grouting.
When you re finished cleaning the grout allow the area to dry for 45 minutes before sealing.
Allow new grout to cure for 48 to 72 hours before sealing.
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.
Next choose your sealer based on the type of tile you have and its.
What a lot of diy ers and homeowners don t realize is that sealing your tile grout is one of the most important things to ensure your tile floor backsplash countertop or walls look great and last for a long time.
Make sure grout lines aren t cracked chipped or otherwise compromised before treating with a sealant.
Porcelain and ceramic tiles are not porous.
Unsealed tiles such as clay and natural stone must be sealed.
Whether you are repairing or replacing tile and grout new or old sealing them is the last and usually most overlooked step.