acetone should be fine... i use it at work and have only melted thin plastice over time (cups and what not) i was spraying my emblems black and used acetone and they were fine... as long as you wipe it off you'll prob be fine... also you could try denatured alcohol... little nicer that acetone...
but if gas works, go for it, i hate sanding!!
Team Duratec # 219
2008 Coupe S:
Born on 12/17/2007