I posted this in another thread but I don't think its getting much attention so I'll just start a thread on the subject similar to my tumbler thread.
I have more questions on the acid and want to try this out more. How would I go about self P&Oing steel? soak it in some acid and water then take it out, and dip it into baking soda water then dry it off and wipe some wd 40 onto it? Alot of the parts I sell need a nice clean finnish and some are welded on by the customer such as tabs and brackets and things. Anybody have any input? It's taking to much time now grinding mill scale off to clean up my parts. Thanks.