It took most of the stains off after 2 applications. However the stripes have a somewhat dull appearance. The stains are gone, but a dull shadow of the stains remains and I fear the stripes are permanently damaged. Waiting to see if the stains come back. I removed them before with a buffer and some rubbing compound. A lot of rubbing. This was definitely easier. We'll see what happens. Not as good as I had hoped. But less work than buffing.