The best option would be to sand the whole frame down and paint (or spray) it with Hammerite or Rust-o-leum. They also do matte coatings. Wouldn't just do the rusted bits though, you've probably damaged the rest of the paint too, so a new coating is the best option.
The best option would be to sand the whole frame down and paint (or spray) it with Hammerite or Rust-o-leum. They also do matte coatings. Wouldn't just do the rusted bits though, you've probably damaged the rest of the paint too, so a new coating is the best option.