I will be removing wood floor tiles that wee installed over old VCT tile which have black mastic on them. I can remove the wood and VCT with no issues, but I do not want to have to remove the old glue. Is there a product that I can apply over the glue before I install new tile in thin set? The sub floor is concrete.

  • Have you checked the mastic and tile for asbestos?
    – Ecnerwal
    Mar 16 '15 at 17:36
  • Call up the thinset manufacturer; they will tell you what they recommend. Apr 10 '15 at 0:36

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