Birchwood Casey Super Blue Liquid Gun, 32-Ounce

Super Blue Liquid Gun Blue – A double-strength bluing solution designed for bluing highly polished steel parts and hardened steels containing nickel and chrome alloys (except stainless). Super Blue Extra Strength Gun Blue is the blackest blue. Use caution to confine the solution to the area to be rebuked, as it will have an effect on the existing blue.

• Used to touch-up or re-blue clean and rust free metal surfaces on firearms
• Reacts quicker than blue paste and uses fewer coats
• Can be applied with swabs (Q-Tips)