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Discuss Self levelling technique in the Tiling Forum area at TilersForums.co.uk.

  1. Slippery

    Slippery Active Member

    Location:
    Cheshire
    I have a small floor, around 6msq to level up before tiling. The customer has already poured some SLC but there are still hollows and mounds.
    Whats the best way of ensuring I get a nice smooth surface across the whole area?
     
  2. Adey1980

    Adey1980 Professional Tiler Top Contributor

    Location:
    Caerphilly
    I would pull up what customer has poured especially if it’s hollow.
    Give it a vac and prime the floor and use a good brand of slc
     
    • Like Like x 2
  3. TheAofT

    TheAofT Active Member

    Location:
    North London
    Agree with Adey if that's the case.
    If not and the floor isn't loose you may use long piece of timber or straight edge or even level will do the trick.
    But first you have to identify all problematic areas and mark them up.
    Obviously, we are talking about small areas under 10m2 with decent level in place.
     
    • Dislike Dislike x 1
  4. Localtiler

    Localtiler Trusted Advisor Professional Tiler JOTM Winner Top Contributor

    Location:
    Yorkshire
    Don’t skimp on the leveller, get a nice depth on
     
    • Agree Agree x 1
  5. Slippery

    Slippery Active Member

    Location:
    Cheshire
    Thanks for the replies, I have used a piece of upvc trim before now as a derby to smooth over bonding, was thinking i could use that.
    I think she did quite a good mix but didn't level it very well, I will give it a tap all over to make sure itr's stuck down well before I start.
    SBR for primer?
     
  6. TheAofT

    TheAofT Active Member

    Location:
    North London
    SBR or any acrylic primer will do the job:thumbsup:
    Good luck!
     
  7. LEE MAC

    LEE MAC Trusted Advisor Professional Tiler JOTM Winner

    Location:
    BELFAST
    What is the substrate below the existing slc, timber, screed? If you can tell us this then the best advice as to how to proceed can be given. They options do vary depending on this.
     
  8. Slippery

    Slippery Active Member

    Location:
    Cheshire
    Its concrete lee
     
  9. LEE MAC

    LEE MAC Trusted Advisor Professional Tiler JOTM Winner

    Location:
    BELFAST
    Assuming that you have the basic experience to understand what I’m about to say( and I say that with a smiley face)
    I’d want as much of the vulnerable existing slc as is reasonably practical removed, I’d then prime with a few coats which will aid with the levelling process as it slows down the rate at which the slc will loose fluidity due to it dehydrating because of the substrate absorbing the moisture from the mix and then that in turn will help the flow of the compound and in conjuction with the use of a spiked roller of relevant spike length, will help you achieve the best flat floor that you can reasonably expect.
     
    • Agree Agree x 1
    • Winner Winner x 1
  10. timeless john

    timeless john Trusted Advisor Professional Tiler JOTM Winner

    Location:
    North East England
    Once you’ve prepped it as above put some spot height around the floor with your level then pour!
    Make sure it can’t run away!
     
    • Like Like x 1
  11. Balloo

    Balloo Active Member

    Location:
    Belfast
    I use a close tooth garden rake to spread
     
    • Funny Funny x 1
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