cross-posted from: https://lemmy.ca/post/54746362

I was burning a cone incense and left it on the sink, and this stain won’t come off. I tried baking soda, water, vinegar, hydrogen peroxide. I tried letting them sit for multiple interations, and it made no difference.

    • perestroika@slrpnk.net
      1·
      5 days ago

      I would likely try the methods of car headlight repair:

      • fine sandpaper (e.g. 600)
      • followed by ultra fine sandpaper (e.g. 1000)
      • followed by polishing sandpaper (e.g. 2000 or even more)
      • followed by polishing paste (e.g. cerium oxide) on a felt pad

      However, since I see that the sink has a glossy surface… I would be deterred by that. The method I mention may reach a layer which isn’t burnt, but will wear off glossy finish and there’s no certainty of it returning in the same tone after polishing is done.

      What paint to use - sorry, no idea.