What Is The Best Adhesive For Installing New Ceramic Tile Over Old Ceramic Tile?


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Larry Patterson answered
I wouldn't trust ceramic laid on ceramic because I don't know how you could get a decent bond.
Maybe on top of a non-glazed tile but I still wouldn't try it.  You might be able to put a thin concrete backerboard (1/4") over the existing tile but it will be a real chore securing the backerboard solidly to the material under the old tile.  If you can mark the existing joints and put the screws down thru the old grout joints --maybe.

If I found an adhesive that claimed it could bond a tile to a glazed tile, I would try it first and see if it creates an acceptable bond.

But if the old tiles are cracked, uneven or otherwise damaged, it will cause problems.

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