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Question:

After my saltillo tile floors were flooded a white powder has formed on the tile.?

Not sure it it‘s mold/mildew ot the sealer stripping off. I‘ve used Tilex but it didn‘t work. Even scrubbed it with a stiff brush. Anyone know what this film is and how to get it off?

Answer:

Are these tiles applied directly to a concrete floor that sits on the ground? If so, it sounds like efflorescence, where salt moves from the ground into the floor and then through the tile appearing as a white film on the surface of the tile (it happens through basement walls and if bricks are placed on the ground). Scrubbing may not be enough. You may have to check at your local hardware store for a sealer for your tiles or a cleaner strong enough to prevent the film from forming again.

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