Product DescriptionA double strength blueing solution designed for blueing highly polished steel parts and hardened steels containing nickel and chrome alloys. 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. Please Note: This description may represent a general group of products. Please read the item's title and specifications for more specific information about this particular item. | 
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