I have used Nelson's paint for years. It is a high quality product, but it does take some practice to get the flow adjusted correctly if you're spraying. It tends to spray on dry, so you get a fogged appearance unless you reduce the air pressure. I have used the foam brush application with excellent results. Regarding primer, I have never found anything that Nelson's will stick to except Nelson's primer. I ruined a beautiful paint job by using Rustoleum primer that his literature says will work. It does not. The paint lifted, and the problem is that the paint dries to a plastic like condition. It is impossible to remove once it's cured. The paint and primer are actually a good price because you don't have to buy thinners, reducers, etc. And the paint goes a long way as you apply it. Nelson includes an instruction sheet and it is very good about answering all your questions. It is fuel proof. Once cured, it is a very tough finish.