Holy Rust Batman! What to do?

My boat trailer had some rust issues from very limited salt water exposure. I used OSPHO on it and then bought some Rustoleum rust inhibitor, I used a wire wheel and brush got off all the loose paint and rust, then brushed on Ospho and let it sit over night (if any dampness out let it sit longer), Then sprayed the rustoleum rust inhibitor and then a final coat of Rust defender paint!!
Worked great!! And should do good on that rust!
Good luck!