Quote:
Originally Posted by Craig Budgeon
Another way of expressing it is that rusting bluing is achieved by applying multiple layers of rust which is carded off until the desired depth of blue is achieved. Case color is a pleasant side affect from the necessary process of casehardening and has very little durability unless the parts are externally lacquered. Nitre blue is another heat related process which has little durability and little depth but is inexpensive for manufacturers
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Forgive me if I'm commenting beyond the intent of this thread but, I have yet to find a lacquer or, any other coating that can be applied in a manner that comes anywhere close to replicating the beauty of engraving upon bare metal.
Now, to topic - are there any manufacturers that rust blued trigger guards and other appointments, save screw-heads, in general practice? I'm 'guessing' Parker? The guards and SBP's on my PR's appear to have the soft glow of rust bluing.