Tiling over plastic shower [Archive] - Ceramic Tile Advice Forums - John Bridge Ceramic Tile


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chris W
02-22-2008, 04:19 PM
I haven't seen anyone address this so I'm assuming its such common sense no one would ask, but can I just tile over a molded plastic shower? Is there anything I could do to prepare the surface and just tile over it? It's a corner shower, so I was thinking of just tiling over two flat walls and molded plastic bottom pan and leaving the soap/shampoo dishes as they are.

Terrible idea?


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02-22-2008, 04:28 PM
Not a good idea at all. I'm pretty sure the shower walls are not sturdy enough for tile. Rip it out.

02-22-2008, 04:54 PM
Hi Chris.
I cant think of any specific rules that come into mind about not tiling
over something like cultured marble. It would need to be fairly rigid with
little to no flex. Fiberglass on the other hand should be a pretty obvious
no-no as it is really thin and really flexible. I have seen this question before
and im just trying to be open minded about it. Most pro's are going to
tell you not to do it period. We like to help folks build projects by the book
to help you create the best possible job that will last for years. If you
do tile over this "plastic" shower i should point out your biggest hurdle
will be in finding a thinset or epoxy rated for the material you are installing
your tile on. My best advice is to remove the existing fiberglass or cultured
marble shower and start from the beginning. I think in the long run you will
be glad you did.