If there were a way to thin it without losing the effect, that'd work awesomely, but i found if you just start in one corner, do a few strokes, then move to the opposite corner, so that way you never overlap once it starts "setting up" till it hardens a bit, then you can overlap, otherwise you'll see brush strokes in the finished product.
Also the 1shot, someone on this site mentioned they painted their motor with 1shot and it worked fine. I have a bunch of it and I never thought about painting a motor with it till then. It worked fine.