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.
Acrylic is plastic, you likely burned the plastic with hot ashes. You can try wet sanding it down using very fine grit sandpaper, followed by polishing, but YMMV.