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Do I need a sealer/primer before tiling?

  • 10-03-2016 9:47pm
    #1
    eamon11
    Site Banned Posts: 518 ✭✭✭


    Hello to all,

    its a new floor done 6 months ago and now I will tile it. It was a liquid screed floor and honestly its a very weak mix as its very soft. Anyway, its extremely dusty and was about to tile after a good hoovering. Would there be a problem with this?

    Thanks in advance.


Comments

  • #2
    Steve
    Registered Users, Registered Users 2 Posts: 22,584 ✭✭✭✭Steve


    All I know is don't use polybond.

    There may be a suitable primer - Try getting in touch with someone in Bostik, more than likely you'll be sticking the tiles down with one of their products.

    http://bostik.ie/


  • #3
    e.r
    Registered Users, Registered Users 2 Posts: 424 ✭✭e.r


    You need to remove the weak layer that forms on top of those screeds, as the water content when pouring is high.

    Then use a acrylic primer, before tiling.

    Is there UFH system ? As the screed need to be dry to 0.5% moisture content, and liquid screeds are impossible to dry with UFH


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