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Tilling bare plaster skim

Discussion in 'Tiling' started by vibrobullit407, 3 Feb 2012.

  1. vibrobullit407

    vibrobullit407

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    I am about to commence tilling my bathroom walls and was wondering what primer I would need for fresh plaster skim. I've checked my tile weight and they are well below the 16Kg/m2 recommended. I have a norcross tanking system for the shower cubicle but will I need to tank above the bath as well?

    Any advice would be greatly appreciated.
     
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  3. Richard C

    Richard C

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    What material & size are the tiles?
     
  4. vibrobullit407

    vibrobullit407

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    The tiles are 4.5mm thick porcelain tiles (600mm x 300mm).
     
  5. prceramics

    prceramics

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    do you have primer in your tanking kit ? the bal one comes with a small bottle
     
  6. prceramics

    prceramics

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  7. vibrobullit407

    vibrobullit407

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    Yes it comes with a 500mm bottle but wont cover every where that I will be tilling. It will probably just prime the shower walls. Is there a decent not too expensive primer that i can purchase to prime the rest of the room (another 9M2)?
     
  8. vibrobullit407

    vibrobullit407

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    Its just skim and it was done over 2 weeks ago, would this not be plenty of time for the plaster to dry out?
     
  9. prceramics

    prceramics

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    sorry skim will be fine
     
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  11. Richard C

    Richard C

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    Depends; if it’s just a slim you’ll be OK to tile after 14 days. If it’s a base coat & skim, then 4 weeks is the mark. Don’t douse the tiles in water for 14 days after laying.

    For that size tile you must use cement powder addy, not tub ready mix or you could have problems with setting. You will need an acrylic primer to avoid reaction between the cement in the addy & gypsum in the plaster. Forgot to ask what the skim is over; if it’s boards use either Rapidset flexy or Single part flexy (SPF), otherwise use a Rapidset or a suitable modified addy with a longer set time.
     
  12. Richard C

    Richard C

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    ;)
     
  13. vibrobullit407

    vibrobullit407

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    Got me worried there! :eek: Taken next week off to do it!
     
  14. Richard C

    Richard C

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  15. vibrobullit407

    vibrobullit407

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    The wall have just been over skimmed over previous skim.
     
  16. Richard C

    Richard C

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    No problem
     
  17. Richard C

    Richard C

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    Posts were all a bit quick there; if you’ve tanked it then the gypsum thing is not relevant but the acrylic primer is the same; it does pay to use tiling materials from the same manufacturer though
     
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