Refishing aluminum with anodized finish

Discussion in 'Engraving & Refinishing' started by Kenney, Mar 25, 2012.

  1. Kenney

    Kenney New Member

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    Anything quality for under $50?
     
  2. JonM

    JonM Moderator

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    depends on the size of the part and how much prepwork the finisher has to do. if they have to remove old finish on a large part its more pricey than a smaller one. if its unfinished and fairly small you might be in the ball park.
     

  3. Kenney

    Kenney New Member

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    Any way to do it myself? I want to do the whole thing.
     
  4. Kenney

    Kenney New Member

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    And I meant removing the old anodized finish. Don't like polymer guns or ones that look like it.
     
  5. JonM

    JonM Moderator

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  6. mountainman13

    mountainman13 New Member

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    Awesome link. Definitely need to be careful doing that. High amps and acid are no joke.
     
  7. Kenney

    Kenney New Member

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    Thanks. Any idea how to remove a anodized coat?
     
  8. mountainman13

    mountainman13 New Member

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    Being just a surface layer I'd imagine you could sand it off. Just guessing, never dealt with applying or removing.
     
  9. Kenney

    Kenney New Member

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    And any suggestions for a new finish?
     
  10. pagj17

    pagj17 New Member

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    What are you removing it from? Anodizing provides surface hardening if I'm not mistaken. Removing it could weaken the part
     
  11. Kenney

    Kenney New Member

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    Like I said. Polymer guns and those that look like it piss me off. I don't have many rules concerning my guns but that's a big one. There's just no love. How much weakening would we be talking about?
     
  12. mountainman13

    mountainman13 New Member

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    According to that link it surface hardens to the point of being brittle and shouldn't be used on impact parts. If you're talking about sanding the finish off a slide I don't think it would be an issue. But as I said I'm just guessing.
     
  13. JonM

    JonM Moderator

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    Re-anodizing isnt generally a good idea on something likea berrreta 92 they are already fairly weak to begin with. Based on other posts im assuming thats the gun in question.

    I think your better off looking at duracoat or one of the other spray finishes. Typically you only anodize once.

    If that is damaged its typically spray finished somehow instead of redoing the anodize.
     
  14. Kenney

    Kenney New Member

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    Could I polish it, go over it with a fine iron wool for a stainless steel look and seal it with a clear finish maybe?
     
  15. JonM

    JonM Moderator

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    Yup. Removing the anodize by polishing wont hurt long as your not removing metal from frame or slide rails or other places that need to maintain dimensional accuracy

    Just be very careful aluminum is not a very strong metal when it comes to abrasive action. It acts like copper gold and brass in that it scores very easily.

    Before you do it on your gun i would suggest finding out what grade aluminum it is then find a sample to practice on first
     
    Last edited: Mar 25, 2012
  16. Kenney

    Kenney New Member

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    Dumb question of the day, how?
     
  17. BillDeShivs

    BillDeShivs Member

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    Anodized aluminum doesn't look anything like polymer.
    It seems you are determined to seriously devalue your gun by defacing it yourself. Why not have a professional refinish it for you? Doing it yourself will almost guarantee that you will damage the gun.
    Your frame can be plated with electroless nickel, or reanodized in any color, including clear.
     
  18. dvcguns

    dvcguns New Member

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    Send it to usanodizing.com for hard coat. $100
     
  19. Kenney

    Kenney New Member

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    What are the ways to refinish it without "defacing" it? Preferably at a reasonable price.
     
  20. TheOldMan

    TheOldMan New Member

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    What are you wanting to refinish? And when you mention the "polymer" look, are you meaning the matte finish you see on pretty much every pistol these days?

    To answer your question about removing the old finsh, have it bead blasted.. Glass beads are about the safest way to remove the finish off aluminum without harming the metal. Anything else will remove some of the metal to a lesser or greater degree depending on the material you use i.e.: sandpaper, aluminim oxide, etc.. 0000 steal wool is your best choice for "polishing" the metal without removing metal.

    For putting a new finish on your firearm, Duracoat is a very good choice or anything that can be used on aluminum or alloy metals.