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Question DetailsAsked on 2/26/2014

What would be the best way to attach bathroom tile to a cement wall?

We want to put tile on the floor and 1/2 way up the walls in our downstairs bathroom, but the one wall is just painted cement. Can we attach the tile "sheet" with glue and then fill in the grooves in between the tiles with a bathroom grout? (There is no shower or tub in it, so I'm not worried about moisture problems.)

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4 Answers


Thinset is best on concrete substrates.

Answered 6 years ago by Davidhughes


I agree with the above answer but would add to it. With the concrete wall you probably do not have the smoothest surface to deal with as there are generally imprints from the forms used to pour it and even though this wall is painted and is not to be used as a shower or tub area some moisture will work its way through the wall and a cement based product will hold up beter.


Answered 6 years ago by ContractorDon


Since a concrete wall, I presume you mean basement - so outside moisture can be presumed to be migrating through the concrete to at least some extent, which definitely means thinset rather than mastic.

Unfortunately, thinset will not stick worth beans to paint - so you will have to use a chemical paint remover, paint remover disc, wire brush or grinder to take the paint off the concrete, followed by touch grinding to roughen the surface and remove the form oil and any sealant. You will likely be grinding the concrete slab to prep the surface (remove surface glaze and sealant and any floor paint) to place the floor tile anyway, so this is just a bit more area to do.

Answered 6 years ago by LCD


Missed the painted part.

Good Catch LCD.

Gotta strip that off and have a clean susbtrate.

Answered 6 years ago by WoWHomeSolutions

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