Think of the trailer as a Corvette, although usually less costly!
Any products or processes used on a Corvette can be applied to an RV.
Primer: The Eastwood products are excellent, especially for the "non professional". They actually have any product you may need and a lot of "how-to" help videos.
This Epoxy Primer is da bomb! Very easy to spray, lay out and finish.
Paint: SHOPLINE is an easy to mix and use PPG product line found at most professional automotive supply shops. I use the Pro Plus acrylic urethane and the Ultra clear with great results. Value-Pro line is also a very acceptable alternative as well as the Eastwood products.
Don't forget after sanding and cleaning the first coat should be a Adhesion Promoter for the tub and any flexible surface like:
I am NOT a professional automotive painter but have done many projects thru the years to acquire a decent skill set and collection of equipment. I have painted cars, vans, motorcycles and boats as well as cabinetry and houses which was my trade for 35 years.
The reason for the products I use is COST! Near every project I do is for myself and I can live with a less expensive products for my stuff. I deal with PPG so get a somewhat discount on products and source them locally. If I wanted to wait on delivery and price being near equal I would have no issue using Eastwood products, and have on many projects.
Also, if you have a Sherwin Williams automotive store near you they too carry several easy to use paint lines as most are all a 1:1 ratio.
Single stage is paint and clear combined in one product while two stage is paint and clear in two separate products. I use two stage as you can apply one to 10 coats of color until you're satisfied, then as many coats of clear as you like. Advantage to two stage is you can go in and repair/sand any area you need, re-prime then reapply color to cover before clear.
With single stage you get one chance, need to repair or re-sand an area you're doing a complete repaint.
The last project completed last fall
was a 2000 Jeep Cherokee which was a rust repair, quarter panel replacement and complete paint job.
Any questions or help let me know.