I have stains from washing off golf cart batteries one time in the driveway - they are orange and run all the way down to the street. I found The Works at Walmart and Home Depot in a white bottle and just tested it on a 2' square section - it cleared most of it right off! I poured directly onto the stain - no sprayer or diluting. There is still some difference and the treated area is lighter/yellow than the rest now - it's not perfect but better than it was. I may try diluting some in a sprayer and treating the whole driveway and letting it sit longer next to even things out - or hire someone to acid wash (pool acid) the whole thing and power wash afterwards. It was freaky because it bubbled up and was green - I let it sit 5-10 minutes but that was all I wanted to risk... no way I was going to let it dry. I didn't scrub or even get near it - just bathe the spot in the stuff and rinse. YMMV. This post is 4 years after the original post. This post was edited by karyn on Wed, Jun 12, 13 at 7:18

Sooooo glad to run across this, used bar keepers friend on a dry toothbrush and just a few rubs and it came out, perfectly!! My stains were like train tracks across both legs from throwing the jeans over a the rail on my stairs to dry. have done this 100 times, no idea why it stained this time, but the bar keeper's friend got all of it out.

Firstly, I did not recommend OxyClean (nor would I do so). I have never used it and cannot comment on it. I have used PURE sodium percarbonate purchased under the brands (Ecover and BioVert). PM2, the fact that this article refers to sodium carbonate as baking powder (more than once) shows the lack of understanding (and fact checking) by its author. Sodium carbonate is washing soda (or soda ash) - DIFFERENT than baking powder (sodium bicarbonate). There is also a difference in using liquid hydrogen peroxide and dry sodium percarbonate. I think further investigation by PM2 would be in order. This article contains inaccuracies. While hydrogen peroxide solutions have the advantage over powdered products of being sold ready to use, powdered bleaches are easier to handle, have better storage stability and do not need any added chemicals to enhance stability. Powder versions also contain higher percentages of hydrogen peroxide (liquid versions are a high percentage of water).

It might not be the finish that is damaged. The Brillo may have left a cloudy layer. Use a good, non-abrasive cleaning product (even just gentle dish soap and clean water). Scrub hard (but with a non-abrasive towel or sponge). Rinse very well after - even dish soap residue will dry cloudy on the surface. Odds are this will fix the issue. Try baking soda and water as well if you need to. You can get a more aggressive cleaner (Caeserstone recommends Soft Scrub gel cleaner with bleach). Important though that you never use an abrasive sponge (not even the scratchy side of a plastic sponge). If that fails, you can try polishers such as Quartz Renew or Granite Gold Quartz Brite. They don't actually polish though, they just give a temporary shine. Only a true mechanical polish will repair it if it is actually damaged. It would be something best left to the professionals (you risk overheating when you polish mechanically, which would cause other issues).