How to remove stain on corona counter?

my PC changed my counter..it is Corian. Not corona!!!

If you are talking about Corian countertops...you may be able to use a fine grit sandpaper and actually sand the stain out somewhat. test it on a hidden area to see if it works on your counter before doing it in a noticeable spot. Afterwards, I believe home centers sell a conditioner for Corian that would help to bring back some of the original sheen.

Not sure I would know how to remove the stain, but you may be able to cover it by using central heating pipe flanges (look like chrome )to slip around the Faucet where it meets the top.

try a wet magic eraser

Try steam cleaning it.

I would start with Vinegar, then 407, let these sit over night, and then see in the morn, just how it looks. These do work wonders, but tell us first of all, what all you have tried. Even if you use sos, you can use pledge the next time you clean, and you will never know the diff. Best wishes, J.