What kind of paint for my trailer?

[Frank R]

You could try POR-15 for a primer.

Does it smell really bad?

I have used epoxies while boat building and they have almost no odor at all. Somebody else's post mentioned a strong odor to the epoxy.

[cdeal5760]

The first trailer I built was a 6x10, we primed it then sprayed it. But we mixed a farm implement enamel hardener in the paint and spayed it with an HVLP gun. Had no complaints from the customer so far, been about 9 months now. Im not an expert painter or coater haha just sharing an experience

[Meltedmetal]

Does it smell really bad?

I have used epoxies while boat building and they have almost no odor at all. Somebody else's post mentioned a strong odor to the epoxy.

I guess you mean the thinner cause once it is dry I don't notice any odor.? The thinner is very much like lacquer thinner or maybe it is lacquer thinner. The thinner is flammable so precautions must be observed. We use it on truck rims and it resists the salt in winter well. However like most any paint the base metal must be clean. We shot blast small stuff and the grainy surface also helps with adhesion. I have used it to re-glue sanding belts and used it to patch the pin-holes in the oil pan of a car I have. Lasted three years and counting. I should say also that I am not a professional painter nor an expert in that field, This is just my experience.
Meltedmetal