Porcelain and ceramic tiles are not porous.
Sealing ceramic tiles before grouting.
Existing grout should be cleaned and dried before resealing.
If they are touch up grout and wait the requisite 48 to 72 hours before sealing.
When you re finished cleaning the grout allow the area to dry for 45 minutes before sealing.
Whether you are repairing or replacing tile and grout new or old sealing them is the last and usually most overlooked step.
Unsealed tiles such as clay and natural stone must be sealed.
Make sure grout lines aren t cracked chipped or otherwise compromised before treating with a sealant.
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.
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.