give some goof off a shot, its a very strong "remover" we used to use it to get labels and stickers off shelves at thehardware store where I worked
![I Dunno... :dunno:](https://board.marlincrawler.com/Smileys/marlin/dunno.gif)
YOu could also try some )) steel wool, with the soapy water technique. I've seen it used before, but that was on tint that was starting to bubble