RE: Plasti-Dip Body for Traxxas Slash
Rc bodies are ment to be painted on the inside with a particular lexan paint.
Plasti-dip is flexable but i've never seen it cover the entire body. I've only used it for a real looking truck bed.
The two paints mostly used are faskcolors and parma. For the green if you use the plasti-dip just block the area you don't want black with tape.
When you do this paint slowly with the plasti-dip it will take several layers and you will have to use an exacto knife to cut the tape out because it will peel up the paint around it.
The best advise i have is go for it. I believe it will work with the little i've used it but there's only one way to find out for sure.