I managed to melt some of my rainpaints on my exhaust pipe.  Any suggestions as to how to clean it off.  I used WD40 which takes off a lot of stuff but it didn't work.  Any suggestions would be appreciated.  My rain paints still work ok, just part of the learning process maybe LO That lovely material that doesn't melt should be on the outside as well as inside of the legs.  
Maryjo

I've found that using a glass scraper worked for melted plastic when I neglected to let the header cool before putting my cover on. Just be careful, I did scratch my header a little bit using this technique, but I have clumsy hands. And for some road tar that was on the muffler, I used a penny to scratch it off. The soft copper of the penny didn't scratch the chrome.

Good Luck!  

Thanks for all the suggestions, I'm sure from this I will find something that works!

Fortunately my expensive rainpants are still useable.

Thanks a bunch for that tip!