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.

Note:SUPER BLUE Liquid Gun Blue will not blue stainless steel, aluminum or non-ferrous metals..

Quantity : 90ml
Surface Mail (4-8 WEEKS) only .
Weight(Gram):128