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Best paint for roller shutters?

Discussion in 'Decorating and Painting' started by MopeyGecko, 6 Sep 2021.

  1. MopeyGecko

    MopeyGecko

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    Hi all, I'm wanting to repaint some shutters but I'm unsure on the best paint for the job. They are perforated powder coated roller shutters in a dark blue but I'm wanting to go with a matt finish grey instead. It looks like they may have been overpainted with a light coat in the past so need a good scrub down with a wire brush but there is no badly flaking spots. I've attached a photo. Can anybody please advise on best paint to use? There are also some ceramic tiles to paint so something that can be used on both is needed if possible.
     

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  2. Swwils

    Swwils

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    Zinsser AllCoat Exterior
     
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  4. opps

    opps

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    I would spray them with cellulose (or similar) using a HVLP turbine and gun.

    Cellulose is a "hot" paint, by that I mean if someone has previously used "bog standard" paint, the cellulose may interact with the previous paint. A quick test is to lightly sand a section and apply some cellulose thinners with a rag and see what happens. If nothing, you are good to go. If it does re-act, you need to spray a special primer first.

    The paint stinks but will dry/cure much faster than either water based or oil based paints. Touch dry will be very fast, full cure will be about 12 hours. Full cure for waterbased paints is about 3 days, weeks for oil based. Exterior 2K paints cure even faster because you mix a catalyst with the paint but they require specialist breathing equipment. When using 2K on a warm day, touch dry/lift up time is about 20 minutes, and I can sand it after about an hour

    If you use a brush and roller, you are likely to either clog the holes or find paint dripping down on the inner face (and possibly the outer face as well).

    If you are not bothered about the quality of finish then I would recommend an oil based undercoat and oil based top coat (you can add terebene to speed up drying). You can get grey undercoat if you go to a proper decorators' merchant.
     
  5. opps

    opps

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    Ahh, but which one though. They make both waterbased and oil based versions. BTW, if you ever need a particularly dark colour, a few places stock the clear base coat. Most places only stock the off white base coats.

    Zinsser UK can provide you with a list of retailers. From memory, I think that some branches of Brewers carry the clear base coat.
     
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  7. Swwils

    Swwils

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    The water base is really very good. Should only need the oil one for tricky stuff or if you like painting when it's really cold!
     
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