We had stripped our clear coat off already. Our blue band around the trailer was plastic held on with rivets and mostly gone anyway. I painted it with spray
Rustoleum blue (royal maybe?) after masking it off. The Airstream lettering, I painted with same paint but from a can and with a paintbrush. The logos were masked and sprayed in the red, white, and blue colors, then paint cleaned off the raised letters with paint thinner and Qtips.
If you spray paint your band, mask well and do it on a still day, no wind. Otherwise you may have a blue trailer. After 3 years of wear and tear (she sits outside), I'm seeing a few flakes of blue coming off, so I'll be carefully very lightly sanding those areas to smooth the paint and redoing this summer.