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  1. #1

    Default Weighing down Aluminum?

    I've been working on a sculpture made out of .080 aluminum and I need to weigh down the base somehow so it is stable.

    It is crescent shaped cylinder so space is a little difficult. If there was something I could pour in that would be great. I thought about buying some workout weights and suspending them within the shape with string and then filling the void with an expandable two part form to act as an insulator to prevent the cast iron from touching the aluminum.

    I'd love to just pour in some concrete but I've been reading bad things about AL and concrete. Sand has been suggested but would it hold moisture? The sculpture is going to be indoors.

    What would I be able to use without having to worry about corrosion or problems down the road?

    Thanks!

  2. #2
    Join Date
    Mar 2008
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    Anchorage AK
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    Default

    LEAD melts at a low temp so you don't need a furnace. very dense .

  3. #3

    Default

    Are lead and AL similar metals or would I have to worry about galvanic corrosion?

  4. #4
    Join Date
    Sep 2008
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    southwestern ohio
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    Default

    As soon as started reading this my thought was pour some led in it. Not sure about reactions between the two metals. Ask around at some tire shops maybe theyhave some old wheel weights that you can have.

  5. #5
    Join Date
    Nov 2007
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    142

    Default

    are we talking a quart or like 25 gallons?
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  6. #6
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    Default

    Use lead. It won't hurt the aluminum. And you don't want to use concrete either it has lye in it and will corrode the aluminum. Lye is what the anodizing shops use to strip the anodize off the aluminum part.
    Kerry
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  7. #7

    Default

    What about gravel? Or scrap aluminum?
    "If you build it, they will come!"

  8. #8
    Join Date
    Mar 2007
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    Deltaville, VA
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    Default

    As has been mentioned, use lead poured into a mold.

    Molds for fishing sinkers are made of cast aluminum and are constantly being subjected to molten lead without problems.

  9. #9
    Join Date
    Aug 2006
    Location
    near rochester NY
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    9,881

    Lightbulb

    you might look at shot-gun pellets. you can buy them for reloading in small but heavy bags. fairly cheap and lots of wait. that would keep you from having to melt anything, just have to seal it up some how after. maybe some of the foam.
    most gun or sporting places with gun's should have them.
    thanks for the help
    ......or..........
    hope i helped

    feel free to shoot me an e-mail direct i have time to chat. james@newyorkmetalart.com
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  10. #10
    Join Date
    Dec 2007
    Location
    Oklahoma
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    Smile

    Quote Originally Posted by fun4now View Post
    you might look at shot-gun pellets. you can buy them for reloading in small but heavy bags. fairly cheap and lots of wait. that would keep you from having to melt anything, just have to seal it up some how after. maybe some of the foam.
    most gun or sporting places with gun's should have them.
    The shot would also be removeable if one ever needed to do that.

    Griff

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