Helpful info on painting a lawn care trailer??
Just simply wire wheel the entire trailer to get scratches in old paint knocked down but focus on the rust first before your wire gets worn down. Then use your sand paper to smooth any major thing down and prime using a simple spray can. I then used can of black rustoleum and painted it on with those cheap foam brushes because it doesn't leave streaks. Both of my trailers I did this to turned out fantastic and didn't take much effort. Also I used a paint stripper that attaches to a power drill and it worked pretty good, probably better than the wire wheel. I think it was made by 3m