But isopropyl alcohol and enough elbow grease will get it off, if it’s just a coating on plastic.

Do beware, however, that you may want to dilute the alcohol to some degree, or simply use a lower concentration form of it. Too strong and it may eat at the underlying plastic just as much as the coating and ruin it.

unrelated

are you getting a cut from kagi for writing that instead of search? gimme the deets on that deal if so! 😛