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Grey undercoat for whites????

Discussion in 'Decorating and Painting' started by ikearns, 17 Sep 2019.

  1. ikearns

    ikearns

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    Went into a reputable store today (not DIY chain) and was talking about a large box bay window that I need to paint and I was told that grey undercoat is the way to go even though I am looking at a light / white top coat.

    I thought grey undercoat was only for mid and dark colours.

    Happy to go with a light grey if there is a good reason to do so.
     
  2. JohnD

    JohnD

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    It hides the old colour and prevents it showing through the white.

    What colour is it now?
     
  3. ikearns

    ikearns

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    Decades of paint removed. Back to bare wood.
     
  4. opps

    opps

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    I have no idea why they recommended grey.

    As John suggests, if you had bits of black, red and green showing through, grey would cover them better but you haven't.

    If I was presented with black woodwork that needed to be white I might consider a light grey undercoat followed by white undercoat, or I would just sand the black back to the previous grey undercoat.
     
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  5. Nige F

    Nige F

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    Maybe F+B make a special u/c colour called " slightly soiled linen " for these situations ;)
     
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