I have a couple of questions. First of all What kind of primer and paint should I use on my boat trailer? I won't be going into salt just fresh water. How much primer and paint will be needed on a 19ft boat? I guess the trailer is 22feet? My neighbor and I are going to do it as he has a compressor. Thanks for the info.
Best bet would be powder coat......but you have to take ur boat off the trailer and find a place that can do it ...not to mention all the other stuff you would have to remove.....
Depending on the condition of the trailer you may be able to use wax and grease remover or BON AMI powder detergent with grey scotch-brite then spray with non sanding primer,then paint.
If there are multiple blemishes you may want to "feather" them out and prime with a good catalyzed primer surfacer...finish sand with 400 grit wet/dry sand paper.
As far as paint there are alot of choices there is base coat /clearcoat...which I would reccomend beacuse it is easier to work with and less sensitive to contamination, such as water (from the air line) or fingerprints, etc..
Single stage paint is very sensitive and take alot longer to to fix your mistakes and is more suitable to a spraybooth environment.
As far as the clearcoat I would use a fast clearcoat activator because you dont have a very broad flat surface to paint.Also assuming it would be done outside or in a garage.