Originally Posted by
sonatageek
I think you would need to leave the part in the Oxalic acid for quite a while to have a loss of good metal. I and many BF members have had great results with it. Dilute solution and a few hours in the bath and then a gentle 'srcub' with a white Scott's pad and finally a quick rinse in the baking soda bucket to neutralize that acid. Dry and apply wax and or frame saver (if doing a frame) and you are complete.
I have had parts that looked like something from a scrap hauler's truck come out looking respectable to very good with it.
The problem is I'd mostly be treating little chipped/nicked spots on the frame that are surrounded by good paint that I want to keep. It doesn't sound like Oxalic is safe for the surrounding paint, and I could'nt really soak just one spot on the frame.