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metal garage door flaking paint - advice please

Discussion in 'Decorating and Painting' started by richard wenham, 1 Aug 2016.

  1. richard wenham

    richard wenham

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    Hi There. My new house has a metal garage door which has started to flake away in patches. You can scrape patches of it off - right down to the bare metal with a an ordinary hand scraper, but most of the paint is intact. I was planning just to rub it down then paint over the existing paint with a metal primer and then gloss, but am a bit concerned that after i have painted it it will continue to flake away as the existing paint is not sticking to the door (maybe because the wrong primer was used). Any suggestions ? Should i remove all the paint first before painting the door ?


    Margate
     
    Last edited by a moderator: 1 Aug 2016
  2. Robbie uk

    Robbie uk

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    Its unlikely that you will be able to get all the paint off. It sounds like a galvanised door which has been painted without any primer.
    Galvanising requires a " T Wash" on it, Mordant Solution is another name for it, which turns it black then it can be undercoated and glossed in the normal way. You can also use a Calcium Plumbate primer to spot prime the areas you have scraped off.
     
  3. sparkwright

    sparkwright

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    If the flaking is excessive, strip all the paint off if you can.

    Paint that seems it will stay on CAN sometimes flake later.
     
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