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  •  » OT sort of. Has anyone here ever put a black oxide coating on bolts

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    1/13/2025 7:11 PM  #1

    Greg B
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    Registered: 4/01/2013
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    OT sort of. Has anyone here ever put a black oxide coating on bolts

    Or any other parts? 

    I have a side project I've always wanted to do.  I'm going to strip chrome from a set of ratchets and then refinish them with a black oxide finish.   I was originally going to use gun blueing, but now that I'm Starting to learn about this process,  there are better methods. 

    What I am converting is going to be a set of Craftsmen rhft ratchets.   I've watched auctions over the last couple years and waited to get the right candidates.   And that is 3 ratchets so clapped out with either rust or peeling chrome, AND cheep!! cheep!! Fun! Fun! (That is a Midwest thing). That this is worth doing this too.   Now I have all three of them.  I also do know products like evaporust leave a black coating.   I'm wanting to go a little deeper and permanent. 

    Anyways, if anyone has played around with oxide, I'd like to hear your thoughts.    I

    If multiple things can go wrong, the one that will go wrong will be the one that causes the most damage.
     

    1/14/2025 4:13 AM  #2

    RTM
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    From: Cape Coral FL
    Registered: 5/22/2019
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    Re: OT sort of. Has anyone here ever put a black oxide coating on bolts

    I had gotten some old black sockets of my dad's when he passed away.  I tried some product my son has and it just didn't hold up and had rust again.  Most likely it's because of how I prepped the sockets.

     

    1/14/2025 5:53 AM  #3

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
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    Re: OT sort of. Has anyone here ever put a black oxide coating on bolts

    Black oxide still rusts.  I believe Eastwood sells a kit to refinish parts with it, but I tend to blast the parts and then use Rustoleum Rust Reformer, which is a matte black finish that converts any remaining rust and looks pretty much just like a black oxide finish.  It seems to hold up pretty well.  I've used it on a lot of chassis bolts on my '89 GT project. 

     

    1/14/2025 7:44 AM  #4

    Greg B
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    Re: OT sort of. Has anyone here ever put a black oxide coating on bolts

    Hmmm.... I've used that Mar-hyde rust reformer before.   I probably have an old bottle in fact.   Got to admit, I didn't think much of a phosphate type coating with the exception of evaporust.  I guess I need to start deep researching how I'm going to save these clapped out beauties.

    Edit:   I should have known Daze dabbled in this sort of thing and has a video on it.   Man we have some great people with knowledge and such connected to this forum!

    Last edited by Greg B (1/14/2025 8:13 AM)

    If multiple things can go wrong, the one that will go wrong will be the one that causes the most damage.
       •Thread Starter
     

    1/15/2025 12:10 PM  #5

    rpm
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    Re: OT sort of. Has anyone here ever put a black oxide coating on bolts

    Greg B wrote:

    Hmmm.... I've used that Mar-hyde rust reformer before.   I probably have an old bottle in fact.   Got to admit, I didn't think much of a phosphate type coating with the exception of evaporust.  I guess I need to start deep researching how I'm going to save these clapped out beauties.

    Edit:   I should have known Daze dabbled in this sort of thing and has a video on it.   Man we have some great people with knowledge and such connected to this forum!

     
    You mean this one?
    https://youtu.be/bEkX0eMrR5w?si=4n0Ptio9clMOKF_H

    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

    1/15/2025 1:40 PM  #6

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
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    Re: OT sort of. Has anyone here ever put a black oxide coating on bolts

    IIRC there is a  cold and hot procedure for doing this.
    The cold method gets a thin coating of about .00001” thick. The hot method is thicker and more durable up to .00005” and I would think better for tools that are used frequently.

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

     

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