Existing grout should be cleaned and dried before resealing.
Sealing ceramic tiles before grouting.
Make sure grout lines aren t cracked chipped or otherwise compromised before treating with a sealant.
Unsealed tiles such as clay and natural stone must be sealed.
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.
Allow new grout to cure for 48 to 72 hours before sealing.
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.
Seal the tile not the grout many tiles especially natural stone such as slate marble and limestone are porous and need to be sealed.
Whether you are repairing or replacing tile and grout new or old sealing them is the last and usually most overlooked step.
Next choose your sealer based on the type of tile you have and its.
Epoxy grout is a tough water resistant material that doesn t require sealer but it s not right for every tile application.