Tiling over brick?

Old 07-29-09, 06:35 AM
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Tiling over brick?

I'm not sure which sub-forum I should be posting this under, but this deals with tile so I'll try here.

I have a fireplace surround that is made of brick... at some point in the past (probably when the house was built in '64) the brick was painted with some sort of shellac or sealant which has yellowed, and now it looks dated and ugly.

I'd like to tile over the fireplace... probably with stone or terracotta. Will the sealant that is on there prevent mortar from adhering properly? How should I prep it?
Old 07-29-09, 09:46 AM
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Sounds like they put a poly coat on the brick. I would try to get that coat removed, by mechanical means, i.e. sander, etc. I would resist using a chemical stripper since that may prevent the tile mortar from bonding properly.

If the brick is in decent condition, i.e. no cracking, flaking, etc, you could prolly just skim coat it with thinset to fill in the voids, then tile over it.

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