Screeding Plywood

Discussion in 'Subfloor Preparation' started by dazlight, May 1, 2018.

  1. dazlight

    dazlight Super Moderator

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    [​IMG][​IMG][​IMG]
     
  2. dazlight

    dazlight Super Moderator

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    So in the past week. Seen it twice.

    Job I did last week.
    Building levels up on plywood
    1st coat approx 15mm
    2nd coat 5mm ish.

    Blown off floor day after so had to take the lot up.


    Other job is one I’m doing a repair on. Same though. Screed blown off plywood.
     
  3. Spacey

    Spacey Super Moderator Staff Member

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    Water based by any chance ? :rolleyes:
     
  4. merit

    merit Well-Known Member

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    Damn. Was it marine ply both times? Both too thick?


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  5. Spacey

    Spacey Super Moderator Staff Member

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    No such thing as marine ply
     
  6. dazlight

    dazlight Super Moderator

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    My one is SP101 6mm with screedmaster flex

    Other one I don’t know but owner of hairdressers said it’s marine ply lol
     
  7. Spacey

    Spacey Super Moderator Staff Member

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    Chinese by the red colour
     
  8. merit

    merit Well-Known Member

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    Well the sheds use to call 18mm wbp marine ply for some reason? What primer mate?


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  9. merit

    merit Well-Known Member

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    I’ve not heard of that screed Daz is it new?


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  10. dazlight

    dazlight Super Moderator

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    No mate been out a while. By Bostik , but think it’s on to thick even though they say up to 30mm
     
  11. dazlight

    dazlight Super Moderator

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    Used their primer 2-1
     
  12. Spacey

    Spacey Super Moderator Staff Member

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    Up to 30mm on a solid subfloor but they fail to mention that I’m guessing
    On ply max is 6mm
     
  13. Spacey

    Spacey Super Moderator Staff Member

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    Exterior ply WPB yes
     
  14. Spacey

    Spacey Super Moderator Staff Member

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    I disagree with most manufacturers specs for screeding over ply

    Watering down acrylic primers and using waterbased compounds doesn’t make sense to me ? :confused:

    Adding fibres to a water based screed does not make it flexible It holds it together when it cracks which it does every time
     
  15. merit

    merit Well-Known Member

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    I hate Bostik. Only used it a few times and it’s failed on me more often than not


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  16. Rugmunching

    Rugmunching Well-Known Member

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    Stopped using bostik when we were getting puddles of water on top of their screedmaster.
     
  17. merit

    merit Well-Known Member

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    I screeded a dentist reception, turned up next day and it was still wet. Not a good weekend for me


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  18. Spacey

    Spacey Super Moderator Staff Member

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    Did you get your fillings sorted while you waited though?
     
  19. merit

    merit Well-Known Member

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    No chance that’s was a private dentist


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  20. Spacey

    Spacey Super Moderator Staff Member

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    Do you mean a gynaecologist? :rolleyes:
     

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