Strantor- You've probably already heard of this, but the hardware store muriatic acid mksj mentions is a pretty darn good one. I believe it's two parts standard drugstore hydrogen peroxide to one part acid. I moved from years of ferric chloride (yuck!) through a brief stint with sodium persulfate, then found the muriatic acid mix. It's cheap as dirt (they usually require me to buy too much acid), and it seems to do its own heating. It can get weak after a while, and I think I narrowed that down to the acid, so I'm not sure what the shelf life is, but again it's cheap! Just read up on it and follow all the safety precautions (mix in the right order, have water and baking soda on hand, and don't breathe it). It's some dangerous crap, but I guess most of that other stuff is too.How well does it work for etching PCBs? When using for PCBs can it be "rejuvenated" by adding more peroxide? or does it just stop working after a while like ferrric chloride?
- Don't mean to sidetrack the thread with off-topic. I'm actually looking for rust info myself.
Take Care