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What sand for rendering

Discussion in 'Plastering and Rendering' started by markyyyyyy, 13 Dec 2020.

  1. markyyyyyy

    markyyyyyy

    Joined:
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    I've decided that once I've put tanking slurry onto my internal wall, I want to use render to flatten the wall so that I can use foam adhesive.

    I was going to use board adhesive but will regret it if moisture comes through years down line.

    What sand should I use for the internal render? It's not a fi ished coat, just to flatten before boarding over.

    I've got a bag of yellow building sand, would that do?

    Do I add mortar plastickser to my 3:1 sand cement mix?

    Cheers
     
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    Last edited by a moderator: 13 Dec 2020
  4. youll probably be better off rendering it first if your’e not a plasterer.
    rendering over tanking can be tricky as there’s little suction and it’ll want to fall off.
    5:1:1/2
    sand cement lime.
    you can also use sbr waterproofer in the mix.
    jewson only do one type of building sand which is perfect.
     
    Last edited by a moderator: 13 Dec 2020
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