A double-strength blueing solution designed for blueing higly 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 effect on the existing blue.
The Wyss iris diaphragm can be used alone or in combination with all approved color systems.
We recommend not setting the aperture below 1.5mm for storage.
The iris diaphragm must never be blackened...