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  2. Bluing (steel) - Wikipedia

    en.wikipedia.org/wiki/Bluing_(steel)

    Friction, as from holster wear, quickly removes cold bluing, and also removes hot bluing, rust, or fume bluing over long periods of use. It is usually inadvisable to use cold bluing as a touch-up where friction is present. If cold bluing is the only practical option, the area should be kept oiled to extend the life of the coating as much as ...

  3. Black oxide - Wikipedia

    en.wikipedia.org/wiki/Black_oxide

    The NaOH (caustic soda) and elevated temperature cause Fe 3 O 4 (black oxide) to form on the surface of the metal instead of Fe 2 O 3 (red oxide; rust). While it is physically denser than red oxide, the fresh black oxide is porous, so oil is then applied as post treatment to the heated part, which seals it by "sinking" into it.

  4. Bluing - Wikipedia

    en.wikipedia.org/wiki/Bluing

    Bluing (steel) is a passivation process in which steel is partially protected against rust Bluing may also refer to: Bluing (fabric), a blue dye used to improve the appearance of fabrics; Bluing (hair), a blue dye used to improve the appearance of hair "bluing" of machine parts to check for tolerances, see engineer's blue

  5. Talk:Bluing (steel) - Wikipedia

    en.wikipedia.org/wiki/Talk:Bluing_(steel)

    Black oxide is but one type of bluing for firearms; there are other types of bluing used on firearms, too. (Hot bluing vs. cold bluing, and hot bluing versus "hot and cold" mixed bluing, for example.) Black oxide is also used to refer to thicker bluing that is black oxide based.

  6. Rust converter - Wikipedia

    en.wikipedia.org/wiki/Rust_converter

    Rust converter is usually applied to objects that are difficult to sand blast, such as vehicles, trailers, fences, iron railings, sheet metal, and the outside of storage tanks.

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    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Case-hardening - Wikipedia

    en.wikipedia.org/wiki/Case-hardening

    The steel darkens significantly and shows a mottled pattern of black, blue, and purple caused by the various compounds formed from impurities in the bone and charcoal. This oxide surface works similarly to bluing , providing a degree of corrosion resistance, as well as an attractive finish.

  9. Bake Better Cookies by Avoiding These 5 Common Mistakes - AOL

    www.aol.com/bake-better-cookies-avoiding-5...

    If your butter and/or eggs are too cold or warm, your cookies might be unpleasantly hard, heavy, and greasy. 2. Not refrigerating your cookie dough.