removing grout/adhesive from tile

Old 08-09-01, 07:14 AM
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I have some beautiful mosaic floor tile I'd like to re-use. Here's the problem: The tile was originally netted on the back and installed in the bathroom. Improper reinstallation of the toilet caused it to leak. The subfloor was marine grade plywood, but after so long (it was by now a rental unit, and the tenant didn't let me know there was a problem) the floor rotted under the tile. I am left with tile with adhesive and grout stuck to it. Is there anything in which I could soak the tile that would loosen the adhesive/grout without damaging the tile?
Old 08-11-01, 02:35 PM
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Location: Katy (Houston area) TX USA
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If the tiles are solid porcelain (no glaze on the surface), you can probably soak them in muriatic acid (pool acid) to loosen the cement. I would dilute by adding l part acid to 3 parts water in a plastic bucket. Drop one or two pieces in overnight to experiment.

Watch it. Acid burns the hands, eyes, and lungs.

Old 08-12-01, 11:49 AM
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Thanks for your reply. I think, however, the tile does have a glaze on the surface. I may be destined to scrap it, or painstakingly clean each one; which seems more effort than it's worth.


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