To echo this, I taught a co-worker how to do composite work a few weeks ago, so he could mock up some composite features for our UAV project. He used standard KR glass and Aeropoxy, with rattle can gray primer. The latex rolled right up and was a real mess. The shop paint guy used acetone to get it off, and the filler came off with it, resulting in a complete refinishing. There may be a way to make it work, but I wouldn't do it...
Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net