Is there any latex paint that will withstand being outside on like a metal trailer?

I hate using oil paint because of the mess with cleanup. Does anyone know of any paint or paint places that have really good latex thats ment for outside metal, like a trailer or a mailbox. Everyone reccommends car paint. But the mixing and hury up and clean the gun sounds like a mess. I like water clean up if possible.Is there any latex paint that will withstand being outside on like a metal trailer?
Industrial paint is great for anything, and is really made for tractors and heavy equipment, but Ive used it on trucks, trailers, etc....good strong, and durable, and not too expensiveIs there any latex paint that will withstand being outside on like a metal trailer?
I hope you don't think Latex will wash up with water. IT WON'T. Ammonia yes. You can get water based outdoor gloss enamel from your hardware. made for outdoor iron furniture.