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  • Should I use scrim tape on hairline cracks before skimming?

    Plasterers

    Hello all
    We have recently stripped wallpaper from a wall as part of our renovations and found some hairline cracks along the plaster. (The plaster itself is still completely solid and no loose sections to worry about.) I had been advised to use scrim tape for hairline cracks in plaster.
    Before priming the walls to be skimmed, should these cracks be sealed with scrim tape, before the walls are primed to be skimmed?
    Is there any risks to the plaster over the long term by using the scrim tape?
    If anyone has any other suggestions for hairline cracks, besides re-plastering the section, please let me know.

    Asked by Cheryl on 21st Aug 2019
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    A W tiling and plastering

    "Hello yes this is acceptable for hairline cracks with no movement or loose material and poses no risk to the plaster.
    Thank you
    A khan"

    Answered on 21st Aug 2019 - Member since Feb 2019 - report
    Gary Coulter

    "Using scrim on cracking walls is okay, especially if cracks are deeper due to movement in the plaster and it hasn't blown, sounds as if yours are shrinkage cracks which is unnecessary to scrim, once primed and skimmed will disappear"

    Answered on 25th Aug 2019 - Member since Mar 2019 - report

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