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Birchwood Casey Perma Blue
PERMA BLUE Liquid Gun Blue is the proven way to touch-up scratches and worn spots or to completely reblue most guns. It will give a non-streaky, even blue-black finish to steel except stainless. All parts to be blued must be thoroughly cleaned with a metal cleaner such as BIRCHWOOD CASEY Cleaner-Degreaser and any rust must be removed before applying the blue.
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