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I use blacksmith-made hardware whenever I (or my customers) can afford it. But if youre on a budget or have hundreds of pieces of hardware for a project, its time to visit the gun store. My favorite way to blacken steel, iron or even zinc-plated hardware is to brush on a thin coat of liquid gun blue typically a combination of selenious acid, nitric acid and cupric sulfate. If […]The post Use Gun Blue to Instantly Blacken Hardware appeared first on Popular Woodworking Magazine.Read more here