It does work well but as everyone says its very harmfull, which I why I charge danger money for RIB repairs lol
. It is easy enough to get hold of here in the UK and in fact I can supply it, but you must be careful with it or you will make yourself very ill
. Another method might be using a flap sander gently on a low reving drill, be careful not apply to much pressure or you will damage the fabric!
If you need any further help please let me know.
Cheers
Stephen