Rust Bluing Results

[dnickels]

Thanks for the kind words!

I'm not sure if it goes bad in the closed bottle. While using the solution, I kept pouring small amounts into a Nyquil type cup to avoid contamination of the bottle since the application generates rust. My liquid cold blues don't go bad. On the other hand, I used 3/4 the bottle or more, so it's not like I have a lot left.