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The other day a painter came to paint a wall white and he washed his tools and buckets in my black kitchen sink that's made out of silgranit. I don't know the composition of the material but it's got a rough surface, if not porous, and it looks like small white flecks of paint got embedded in it.

How can I get the wall paint out of the sink's surface?

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    #1: pick up the phone, #2: dial your painter, #3 "hey bozo, get your dumb @$$ back over here and fix this mess". The alternative may involve something like a "brush cleaner" which will soften the dried paint, but might not be friendly to your plumbing in large volumes or high concentrations.
    – brhans
    Nov 29, 2021 at 20:42
  • Before i tried any harsh chemicals or abrasives that might scratch, id try scrubbing it with something like a 3M brillow pad (the green ones not the meatal or sandpaper ones).
    – mark f
    Nov 29, 2021 at 21:25
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    I was thinking a porous surface would be very bad for a kitchen sink! So I went to the website, sure enough, it states that it is non-porous. You may want to check the Blanco website for cleaning advice.
    – Glen Yates
    Nov 29, 2021 at 22:36
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    Step #3 in @brhans' answer might include the painter paying to have a plumber replace the whole sink if he can't get it clean or further damages it in his attempts to do so. Photographic evidence before he returns would be wise.
    – FreeMan
    Nov 30, 2021 at 15:49

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Base is acrylic, so you should not use chemicals for paint removing, like lacquer thinner. Some strong cleaning staff, like sodium hydroxide.

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  • Maybe polyester; same advice. Nov 29, 2021 at 21:30
  • @blacksmith37 The post has a link. Technical info said acrylic. Polyester soft, melamine is used for similar.
    – user263983
    Nov 29, 2021 at 21:42

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