-I think acetone dissolves most foams. --Brian Started with putting some in a cup with Acetone see what would happen and it just sat there looking at me with an "AND?..." expression on its face. . Worked about as well as gasoline (nothing), and some various acids approved and provided by my body shop guy/friend who can do anything. Even went muriatic for curiosity sake. They store some seriously strong acid in plastic. This foam stuff is "plastic-esque" Couldn't tell by how it tasted (joke) but similar at least. Anyways no acid. *But lacked any helpful chemicals that wouldn't force me to treat the inside afterwards with something thick. And 8 or 16 oz bottle reduces that much fuel capacity. Already small tank. 3.5ish gallons.* *Decided heat/flames and paint= bad. No heat. * - From: James Calandro <capo@carolina.rr.com> I have heard of folks putting lots of nuts and bolts inside and sealing the tank, then wrapping it up in a thick blanket and putting it into your clothes dryer with no heat. Jim Calandro Perhaps. But the thought of me screwing that one up seems liiely. I'd be paramoid and checking it for dents constantly. Takes the fun out of it. Anyways. BB's arent sharp. Usually clean. Surprisingly effective. This stuff was OLD so delapidated well. Isn't this fun?? Ride well! G4 All things in moderation (Especially moderation).