Rolling Mill sticky situation

Heat and mineral spirits might do the job but that sounds messier
than the mess. I would take the opposite tack and put ice cubes
loosely in a zip-lock bag and hold them against the wax until it
could be cleanly pulled free. Ice is what is suggested to remove wax
or chewing gum - it gets hard and can be scraped or cracked off
without making more mess or damage to surface. Why not rolling
mills?

Good luck.
Pat