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I just tiled the bathtub alcove and it came out great. Now I need to seal the grout. My question is, do i seal just the grout lines or do I apply the seal on the tiles and the grout?

Thank you.

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This greatly depends on the type tile you have. If it is a manmade tile such as porcelain, or ceramic, then you don't have to worry about sealing it.

Most natural stone tiles, especially softer or water permeable stone such as marble, limestone/travertine, and slate should be sealed as well. This would ideally be done prior to grouting to prevent the stone from being stained by the grout. It would also be a good idea to use an unsanded grout with natural stone, especially marble because the sand from the grout could leave scratches in the surface.

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  • I have ceramic. Thnaks – MatthewD Jul 15 '15 at 19:06
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    There are porcelain and ceramic tiles that have a crackle finish that also need sealing. – bib Jul 16 '15 at 0:24
  • @bib I have standard smooth finish. Thanks for that info though. – MatthewD Jul 16 '15 at 14:06

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