Birchwood Casey E&F Super Blue Liquid Gun Blue 960ml Details

960ml bottle - A double-strength blueing solution designed for blueing 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 reblued, as it will have an effect on the existing blue - For blued steel and black anodized aluminum, the industrial formula remains permanent against most solvent/chemical washes