This did work but I was not a fan. You really, really have to scrub, it gets all over your hands and it stinks to high heaven. If you are really desperate to get those tar marks off this will work for you. Just be sure to have a good scrubbing tool, wear gloves and be in open air so that the smell is not so bad. If you do that, you will be happy with the results.
After RESULTS PINS UP