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Discolouring on New Paint

Discussion in 'Your Projects' started by Ian.S, 19 Aug 2020.

  1. Ian.S

    Ian.S

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    Hello, this is a bit odd and maybe nothing, but I was wondering if anyone with more experience of painting exterior woodwork might know what's going on.

    I made a rough table out of pallet wood and gave it three coats of Cuprinol Garden Shades Daisy White. It looked fine in the dry of the garage but after a week out on the deck and a couple of rainstorms, the water lying on the top has a strange discolouration (see attached photo).

    The trellis behind was given the same three coats about a month back and has similar discolouring, which I put down to rusty staples leeching into the paint. There are no rusty nails in the table though.

    I'm not sure if this is down to the paint I used, it only seems to be happening on the surfaces that have standing water on them. I'm kinda thinking it might actually be the rainwater that's discoloured.

    Anyone seen this before?
     

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  3. martin hill

    martin hill

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    Hi There.

    It might be oils and sap leeching thru from the wood. But a white tinted colour always going to be a pain in garden with the rain. Try giving it a clean with some bleach kitchen spray.
     
  4. Ian.S

    Ian.S

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    I thought it might have been the crap wood I used for the table, but then the trellis is off-the-shelf treated and a different beast altogether. It definitely looks like the paint doesn't like prolonged contact with water, which would be odd for a 'garden' product.
     
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