Thread: Carding wheel for rust blue process

Interesting that site mentions using salt water. I tried that a few years ago. Was patchy, he he says it works perhaps just more applications. Think I will revisit this when I get a chance.

"Further advice to people is, if they are only going to do a single firearm or two, just use salt water. It is cheap, non toxic and does the job well. If you are going to be doing a lot of firearms, then yes, making your own solution is a good option."