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Correct use of PVA when when patching render/skim over mesh.

Discussion in 'Plastering and Rendering' started by Dain1, 21 Apr 2017.

  1. Dain1

    Dain1

    Joined:
    30 Mar 2012
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    Location:
    Monmouthshire
    Country:
    United Kingdom
    I would like to prevent edge contraction cracks when patching in over mesh (over cracks/helical) by using pva, left until tacky before applying render etc? Would this be before render and again before multi? What strength of pva? What ratio render mix? Do I need special sand (I just tend to use small bags of 'Builders sand' from TP).

    Thank you.
     
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