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reseigh 12-16-2011 06:07 PM

painted concrete floor to be covered with ceramic tile
 
I have a30 year old painted concrete basement floor , I want to install ceramic tile , how much of the paint do I need to remove to ensure the bond is good with the thin set ? or are the alternatives ? The floor is flat ,dry and no cracks .
Any suggestions ?
aussie chris in Va

JazMan 12-16-2011 10:59 PM

I would like to see 100% concrete, I'd settle for 85%. :thumbsup:

Jaz

oh'mike 12-17-2011 05:06 AM

Rent a floor buffer with carborundum stones---any chemical stripper will soak into the concrete and may cause bonding failure.

Bud Cline 12-17-2011 11:40 AM

Paint is recognized as a major bond-breaker when it comes to installing ceramic tile on top of it so it is recommended that it be removed totally. This should be done mechanically as chemical removal is also discouraged.

Shot-blast, sand-blast, grind, etc.


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