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Cold Blueing

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3 comments

  • asop
    Does anyone know if 44/40 still use selenic acid in their product? Been years since I last used this but I always thought it did a good job. Thanks
    0
  • dcs shooters
    As far as I know they still do, as my bottle has it listed.
    0
  • rufe-snow
    Brownells, Oxpho-Blue, has Selenious and Phosphoric Acids as well as Cupric and Nickel Sulfates listed in it's contents.
    0

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