Navyag

Worked on a set of small flat jaw tongs.  Build a JABOD yesterday, this was the test drive.   They aren’t pretty but should work for now. 

The problem with using OSPHO or something similar is it gains the most color by converting the rust.  So if you could get a solid coat of consistent rust all the way around the piece in question, it would maintain that black appearance under a clear coat.   In reality it will be splotchy as I have never seen a piece of steel rust uniformly.  some areas would be darker as they held more rust.   Its also not meant to be a top coat and will wash and dissolve over time.  Other coat and soak options would probably be much better, although I haven't ever tried any of them. We just paint over any ospho or convertant we use. 

Glad you posted this, looking to complete something similar next week.  Once I get it up and running, I'll add some pictures and share.   I do have to say, you are a bit crazy working hot metal in bare feet.  Can't imagine that is going to go well in the long run.