Thanks for replying, being that I have had my car for approx. 20 yrs, I have been able to start multiple times just to be shelved again and again... I'm bound and determined to get there. So the things I read and learn, I try and apply when I can. So I got the basics (I get to practice on things, projects other than my car) I just don't get to do it enough to know what you guy's know. I have read almost all of the articles in the knowledge base for body/exterior. there is a real good article by Martinsr on the different products and their definition as well as what they are used for. I just could not find the compatibility between the different medias (plastic to urethane to epoxy etc.) thanks for straightening that up...