Keaner, Hi, so about a gallon total for your trailer. That's about what I was thinking.
James Kent, Hi, so your band is still silver. That always looks very nice.
Paul used a very thin coat of primer, sanded and followed by two very thin coats of rustoleum marine white, with a foam roller, and no tipping, which worked fine, probably because a. he rolled it very, very thin, b. he rolled it "a lot" so that there were practically no bubbles, and 3. he sanded, again, between coats.
Shelly (the practice trailer) has a lovely smooth finish now with a nice quiet gleam.
Here's what you don't want to do: Don't prepare the surface well, don't wipe it down after sanding (don't use rubbing alcohol or acetone), then use a fuzzy roller and glop it on thickly, and try to do it all in one coat.
But what isn't on these things? If we'd had to pay for someone to put in the time Paul is putting in, it'd be cheaper to order a brand-new rig.
Luckily, our time is free and we're good ad scrounging.