This is great man, I read it last night, and im trying it today! So all i can do today, is prep the car, and paint one layer, correct? Tommorow i will wet sand, and then paint once more, correct? Should i paint right over the paint? or should i sand down to metal. I just went and looked at the test door. Its on an old boom truck, and there is still a company sign on it. I will remove the sign, and that will leave little sticky behind, so i guess i will have to sand that down. What grit do i get? I would like to sand the entire test area. THANKS!!!