Very tough to get off. I did the lacquer thinner thing and it only worked marginally. I ended up using a a razor blade. It wasn`t on a nice exhaust like yours.
Also this method with the wood spoon might work to get it off without scratching anything. Start the engine and let it run enough to get the plastic to soften up.
[quote=JMCFAN]Brand new Accurate exhaust on my Roaduuner.... picked up a damn sheet of plastic and its burnt/melted on pipe...
Best way to get it off? Hate to use a wire wheel and scratch it all up..... [/quote
I'd try applying a bit of heat to the plastic, just enough to soften it then try peeling it or scrape (if needed) with something that won't mar the pipes, Wood formed to a chisel point? popsicle sticks? Depends on how large of an area you're dealing with and how thick the plastic is. if it's real thin Steel wool may work
Piece of melted plastic on the exhaust? Can you see it without getting under the car? Can others see it without getting under the car? If the answers are yes, no, and no I'd just drive it and forget about it.
"We live in a time when intelligent people are being silenced so that stupid people won't be offended".
Re: New exhaust...and burnt/melted plasitc...
[Re: JMCFAN]
#3161538 07/21/2308:05 AM07/21/2308:05 AM
Two things that may work, first there's been a compound or polish around for decades to remove chrome motorcycle exhaust "bluing" appropriately called "Blue Away". It may be gritty enough to take some or all of the plastic off and not do too much damage to the exhaust? The second thing would be the rubber(?) abrasive ROLOC 3M discs for removing gasket material off of things like aluminum engine cases and aluminum (M/C) cylinder heads. I think the white 3M ROLOC discs are the least abrasive?
those plastic bristle roloc discs are more aggressive than one would think, so if you use one, please be careful.
This.
I would try mineral spirits and see if it makes the plastic turn gummy, if so rub with a shop rag (not back and forth) and sort of roll the plastic like pencil eraser crumbs. If MS won't work, other things to try are a heat gun, or even rubbing with a rubber glove.
those plastic bristle roloc discs are more aggressive than one would think, so if you use one, please be careful.
This.
I would try mineral spirits and see if it makes the plastic turn gummy, if so rub with a shop rag (not back and forth) and sort of roll the plastic like pencil eraser crumbs. If MS won't work, other things to try are a heat gun, or even rubbing with a rubber glove.
I wouldn't use low odor or odorless mineral spirits, just saying as they seem to all come in a plastic container which would lend one to believe they would have little or no effect on a burned-on plastic bag.
Had another idea that has worked on motorcycle exhausts with burned on plastic from plastic side panels touching the exhaust or from motocross riding gear or mx boot buckles and shin guards touching and melting to them. Mapp gas or oxy/acetenyl torch and completely burn it up, then work from there. Contact the manufacture first as suggested then if noting else is working
BTW the white ROLOC 3M disc is supposed to be the least abrasive of the group, maybe there's something less abrasive
Or just leave alone. Then when it gets really burnt & blackened, just scrub off with a plastic pad. But this may just leave a stain on the plating, if it's a stock type piping. Heat gun, to get soft enough, then just wipe off. But with a twisting motion. A wiping motion may just spread it.
Plenty of videos for removing melted plastic on motorcycle exhausts (just search melted plastic on motorcycle exhausts) from using a pre-1982 copper penny, to oven cleaner, to SOS pads, and finishing with the tried and true Semichrome polish. Here's the copper penny and another with SOS pads. LOTS MORE for motorcycle exhausts.
Had the same thing happen on my brand new TTI headers years ago. Nothing removed all of it, without damaging the coating. Scraped, cleaned and polished many times trying. Finally gave up. Once the headers got up to temp, it first turned brown and remains stained a dark brown to this date. Its under the car, so only I see it when I work under there.
if noting else is working 
