I have some rusty parts that I would like to cleanup (minor parts like bolts and stuff). I've read on this forum that oxalic acid and brushing the parts every so often will work well for removing rust. I've been reading posts in the forum regarding the subject, however, I'm still not sure on a couple of things. For anybody that has done this, do you have these answers?
1. What mixture of oxalic acid and water should I use?
2. How long should I soak the parts?
3. In regards to brushing the parts...should I use a soft bristle brush or metal bristles?