You definately need to use paint that is specific to Lexan r/c bodies. These paints are formulately to bond to this type of plastic and it is also very flexible. Parma, Tamiya, and Testors/Pactra are popular types of paints to use.
Parma's Fascolor is a waterbased paint and is probably the most popular paint to use. It's great to spray indoors since it is waterbased and doesn't smell. Cleanup is also "easy" since it doesn't require a thinner, just water.
Pactra's Racing Finish is a laquer based paint and is my personal choice. IMO, it is more flexible (figuratively speaking) to thinning so if you are into details such as intricate shading, shadowing, and highlighting you will get a much better outcome with this. Of course it's laquer based so it requires a thinner to clean. IMO, this is "easier" than cleaning up dried waterbased paint with water. Word to the wise.. DO use the laqcuer thinner that Pacta sells when thinning paint for spraying. I know it's expensive compared to the cans you can get at the home improvement stores but the Pactra stuff is formulated specifically for the paint. I've experimented with the cheap route and the results were very poor. The paint will not bond very well and will be highly prone to chipping.
Pactra also makes a waterbased paint called Acryl. I have no personal experience with this stuff but I believe NCNitro (a very good painter here at RCNT) has used or does use it.
