I have used with different results e-z off oven cleaner or it's cheap dollar store cousin. not as fast as the industrial stripper, but it won't make ya sterile either. i had 1 bad reaction on a stock car body but I think it was from spayng it and needing to do something else and forgetting about it for a few days. it attacked the metal body and required lots of scubbing and sanding to get ready for paint.