The process is pretty simple, but might want to do a few test runs first to get the hang of it. I had consistency issues at first. The tap water around here is pretty harsh, so after swiitching to distilled water, no problems. Also keep in mind that WD40 is good for the initial wash off, but not a good protectant in the long run. I'm using www.boeshield.com
right now, but not long enough to have any long term results yet.
I would also suggest getting some of the Manganese Phosphate from them while youre at it (if youre wanting to do more than latches/hinges). Same process, but a 20:1 (from memory) solution.
Gonna need a pretty big container for hinges. I havent tried hinges yet for the reason that I havent hunted down a container yet.
Heres a couple hood latches, Gregori on the L, and Palmetto on the R: