Birchwood Casey Super Blue 32 oz. Double-strength blueing solution;Blueing for highly polished steel parts and hardened steels containing nickel and chrome alloys (except stainless);Creates a deep, blackish blue finish;32 oz.table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Flammable: ORMD Item Category Code: 3700 Product Group Code: 3700C Product Sub Group 1: 3700C1 Inactive: Yes