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  • Magdump

    Don’t troll me bro!
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    163   0   0
    Dec 31, 2013
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    Hammond, Louisiana
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    ..........


    Sent from my iPhone using Tapatalk
     

    CatCam

    Ready, Shoot, Aim!
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    5   0   0
    Feb 20, 2013
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    1. Who could abuse a Colt like that? _______________
    2. Who can make it look good again? MAGDUMP!
     

    Magdump

    Don’t troll me bro!
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    163   0   0
    Dec 31, 2013
    9,396
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    Thanks guys, the story ain’t mine to tell. I don’t even really know what made the aluminum swell and flake like it did. I was asked to make it shootable, kinda on a budget, nothing to lose... so I gave it a shot.
     
    Last edited:

    340six

    -Global Mod-
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    5   0   0
    Apr 12, 2012
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    You did great work on that.I could not see well on the phone. It 1st look I thought ya weird it as it had a crack. But now see. That it was just blistered as it does that when exposed kinda like rust. Is that the case? I have a background in fixing stuff like that. My friend owned a chrome plating place. So learned to restore stainless trim on cars. And polish aluminium
    I have done some show items in the past that are small as well as large as a whole transmission. You did great with that with what ya had to start with. Pot metal gets like that. If not plating to fill. On a budget on pot and aluminium to paint like you did.
     

    Magdump

    Don’t troll me bro!
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    163   0   0
    Dec 31, 2013
    9,396
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    Hammond, Louisiana
    Thanks 340, yeah, I’ve seen aluminum oxidize before, but never swell and disintegrate like this. The upper was obviously too far gone to build back, but I figured the lower was salvageable. I could have used body putty to slick out the repair (the JB weld got a few bubbles in it) but knew it would likely not have held up. I used to do body work and paint in the early 80’s so I kinda had to treat it like a body filler job. Fortunately the bore cleaned up well, a testament to those colt barrels of old. Chrome lined baby. Ran the carrier and bolt on a wire wheel and rebuilt the bolt. I had a FSB ready to go and realized I needed way smaller than .75 inch, and like I said, on a budget. Gave that rusty barrel and FSB the same treatment before bluing.
    Surprisingly, parts and supplies amounted to $220 (plus a lotta small parts I always keep laying around). Low enough to justify the effort, even if you’re not a Colt fan...
     
    Last edited:

    dougstump

    Well-Known Member
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    0   0   0
    Nov 22, 2010
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    Thanks guys, the story ain’t mine to tell. I don’t even really know what made the aluminum swell and flake like it did. I was asked to make it shootable, kinda on a budget, nothing to lose... so I gave it a shot.

    It's known as exfoliation corrosion, I've seen it on forged aircraft parts. The wing spars on the F-84F at the Barksdale AFB museum have it BAD.

    Nice restoration!
     

    Magdump

    Don’t troll me bro!
    Rating - 100%
    163   0   0
    Dec 31, 2013
    9,396
    113
    Hammond, Louisiana
    It's known as exfoliation corrosion, I've seen it on forged aircraft parts. The wing spars on the F-84F at the Barksdale AFB museum have it BAD.

    Nice restoration!
    Well the term sure is fitting but I’ve never heard of that. Does it happen from exposure to the elements or just age?
     

    jdindadell

    Not Banned!!!
    Rating - 100%
    267   0   1
    Feb 14, 2010
    4,200
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    Slidell
    Might be due to material impurities... Lowest bidder for the win!

    You did a nice job, I have used jb weld quite a bit in my time (on cars, been in the auto body business 26 yrs) and we currently used epoxy based products to bond metal panels together, bond fiberglass/FRP to metal, and repair urethane plastics. And fix rigid plastic, epoxy seems to be the best stuff for "gluing" solutions. I use a modded epoxy primer to refinish guns, as it matches the factory paint on saiga aks very well (did quite a few conversions and did not want to refinish the entire rifle as they were brand new).

    Original (slow setting) JB weld always seems to work better than JB Quick. I have machined the various types of rigid (hard setting) epoxy with great success. That colt lower receiver would have been nice to setup in the mill and face the entire side, very lightly on the roll marked section and then the entire filled section. I can imagine it would have looked as new after the finish was applied. If you use a heat gun on the epoxy it will help get the air bubbles out.
     

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