My goal was to find a chemical converter. Spray, or brush it on, and brown surface rust turns black. That's all. Combine that with sanding, and end up with a good starting point for priming and blocking. That's all. No I'm not going to brush paint my roof with kill-rust brush paint. I'm no body expert, so trying to prevent problems before attempting actual paint prep.
Maybe I'm over thinking it and im underestimating what a "self etching primer" can be used for instead of a "rust converter" I will definitely need my hand held for the paintjob.
