Rust for rust

[nachoman]

the texture looks a little coarse, but otherwise looks good. At one time, I was going to try similar. I took a bunch of used staples, dissolved them in hydrochloric acid, then re-precipitated the metal by adding baking soda. I was hoping I would wind up with a fine powder of rusty iron - and I did - but I wound up spilling the container before I could use it for weathering. In hindsight, it would be easier to just take fine sandpaper and sand on some rusty steel and collect the fine powder.