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How Do You Tell If Your Tile Is Sealed? [Solved]
You can sometimes tell if your tile or grout has been sealed by spreading a few drops of water on them. If they darken or change color, they are probably not sealed. If they stay the same, they may have already been sealed.
How To Tell If Your Grout Is Sealed
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How to tell if your cement or natural stone tile is sealed
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Sealing Tile - Things Even a Monkey Should Know
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