What was I thinking? My car had a lot of crud on it, so I used some fine cut cleaner before waxing. The paint looks great, but like an idoit, I used the fine cut cleaner on the xpel. Of course, I would never use fine cut on the plastic window, or the head light covers, so what the hell was I thinking when I used it on the xpel? I wasn't thinking. Learn from my $160 mistake. The xpel now has scratches.