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    lumberforme6669 Posts: 1, Reputation: 1
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    Apr 5, 2019, 08:30 AM
    Tileing 18x18 porcelain over a floor with mastic from an old 9x9 tile floor, is it OK
    Installing 18x18 porcelain tile over old mastic from a floor tile removed OK, did it in the entry way and was fine , this room is 11x19 still OK?

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