Key Features Double-strength blueing solution 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 Details 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.13425 - Super Blue® Liquid Gun Blue, 32 fl. oz. Bottle
5 Used this product for years Posted by Earl Acord on Jul 12th 2019 Have always purchased in small bottles at local stores. This larger size is great for large projects . And the price and delivery is awesome.