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Thread: Coatings

  1. #1
    New Member BLR's Avatar
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    Coatings

    First a little background:

    I've wanted to develop a better, at least what I consider "better," finish for a while.

    Without dipping too far into corrosion, tribology and aesthetics, I'll say I'm a fan of composite electroless nickel. However, current EN technology (at least as it's applied to the firearms industry) has some pit falls. First, some coatings are too slippery (too high PTFE content). Some are "yellowish" in color (cadmium added to the bath). Some are to "nickely" in color (too much brightener). However, EN is great for wear and corrosion resistance. And it doesn't suffer the issues of hydrogen embrittlement and electrochemical throw that hard chrome does. To remedy this, I started playing around with a four component system. That being, nickel, phosphorus, PTFE, and tungsten. I added tungsten for a few reasons, one of which is hardness and another color.

    So far, this has been a 3 year development process (albeit, part time). I borrowed heavily from some other industries in terms of final composition, but man, no one wants to share their plating bath compositions. And I didn't find any suitable off the shelf baths that could be modified to suit. The mot technically challenging bit? The PTFE loading. Surface energy is a wonderfully rich field of study.

    Now some teaser pics:





    The frame you see is that abomination of a 1911 that SA made in Brazil. Again, you can assign whatever meaning you like to that statement.

  2. #2
    Very cool! Will you be offering this new finish to others?

  3. #3
    Site Supporter CCT125US's Avatar
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    I really think you need a lab assistant. I will work for ammo and 100K per year, PM me if interested
    Taking a break from social media.

  4. #4
    New Member BLR's Avatar
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    Quote Originally Posted by iGlock View Post
    Very cool! Will you be offering this new finish to others?
    You are only seeing 1/3 of the coating system being developed.

    But yes, that is the hope.

  5. #5
    And perhaps forum members who gave you the motivation you needed to succeed get first dibs?

  6. #6
    New Member BLR's Avatar
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    Quote Originally Posted by iGlock View Post
    And perhaps forum members who gave you the motivation you needed to succeed get first dibs?
    I likely could be talked into some beta testers.

  7. #7
    Member Sparks2112's Avatar
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    Quote Originally Posted by Bill Riehl View Post
    I likely could be talked into some beta testers.
    I'm local, and I've got stuff to coat.
    J.M. Johnston
    Host of Ballistic Radio - Sundays at 7:00 PM EST on Cincinnati's 55KRC THE Talk Station, available on iHeartRadio

  8. #8
    Quote Originally Posted by Bill Riehl View Post
    I likely could be talked into some beta testers.
    Well I think this is awesome and I'll gladly send you a slide or two to "test". I love electroless nickel, both for looks & function.

  9. #9
    Hokey / Ancient JAD's Avatar
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    Bill, have you thought of heat treating the nickel? There are pitfalls, but if you want the coating W.D. hard, it can produce remarkable results.
    Ignore Alien Orders

  10. #10
    Hmm, how will it compare to the Nickel Boron or DLC type finishes?

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