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Discuss How to remove hardened adhesive between glass mosaic tiles in the Tile Cleaning and Restoration Forum area at

  1. Dunkgrease

    Dunkgrease Active Member

    In our old Portuguese property the shower floor is tiled with white glass mosaic tiles. When they were laid (years ago) a lot of the adhesive which is very hard squeezed out through the gaps. The tiler never bothered to scrape out and just grouted as they were. The result is that there are unsightly grey patches of adhesive interspersed with white grout.

    What is the best way to get this old adhesive out so that I can regrout. Mechanical means or is there some form of acid wash?

  2. timeless john

    timeless john Moderator Staff Member Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    North East England
    Thin blade on a grinder or one of them multi tools.
  3. demi34

    demi34 Professional Tiler

    romford essex
    Little drivel machine with 35 mm blade
  4. demi34

    demi34 Professional Tiler

    romford essex
    Sorry drimel machine
  5. Slippery

    Slippery Active Member

    Diamond blade multitool
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