anything. The reason being is that you can concentrate on each step as you go without having to get good coverage with the color, even layout of your metallic and a great shine…The key on a boat is to make sure you catalyze the process from start to finish. That means urethane primer with hardener, hardener in your base coat color and then a high quality urethane clear with hardener. You can buy tint primes today in urethane that are extremely high build for first timers this will help you perfect your finish easier. Biggest concern is to make sure the base is all one uniform tone if possible for coverage issues. All of these products are extremely unhealthy to inhale. Wear proper respretory equipment and find a cool dry place to apply the product. The clear coat can easily be sanded and buffed with anythign from 1200 to 2500 to remove imperfections and you can do the same in the base coat if you have an issue as you are applying it just be sure to apply a coat or two over anything you sand in the base to even the color. Primer can be applied to as coarse as 80 grit but 180 is better then your base can be applied to as coarse as 400 but 600 is better both wet sanded is better and then the clear is applied directly over the base with no sanding at all. My only issue with imron is that it is old urethane technology and actually does not have as high an impact resistance and chemical resistance as the newer urethanes and in my opinion is harder for a first timer to apply….. Too bad you have to go through this but properly done you can make it look pretty good….. Good luck…. Last edited by Mark5795 on May 3rd, 2009, 12:44 pm, edited 2 times in total.