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Thread: Aluminum or Magnesium

  1. #1
    sfrydaddy7's Avatar
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    Default Aluminum or Magnesium

    I have these rims that I thought were aluminum, but when I had them at the sandblasting place said some thing about they might be magnesium. That they seem to light to be aluminum. I figured he probally would know he does it every day. Is there any difference in PC magnesium or can you go about it the same way you do aluminum? Is there a simple way to tell the difference between the two metals? Click image for larger version. 

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    FrydaddY

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    Default Re: Aluminum or Magnesium

    You can put a drop of Vinegar on the metal to determine it's make up. If it fizzes almost immediately, it's Magnesium.... if it's aluminum,.... it should remain clear.


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    mcwheel is offline New User
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    Default Re: Aluminum or Magnesium

    If it is magnesium, DO NOT clean it with acetone. It will begin to corrode immediately.

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    Default Re: Aluminum or Magnesium

    Does it matter what type? I used apple cider & it did nothing. Do I need to use white instead?
    FrydaddY

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    Default Re: Aluminum or Magnesium

    Sorry,... I should have given that before.... I don't know about the effects of apple cider vinegar.... this test is done using white vinegar. I'm not sure what differences could be had using which ones,.... But My data says White vinegar....

    I recently watched a video of someone testing with white vinegar too, on known Aluminum and known Magnesium..... works exactly like I mentioned.

    By the way,... cool wheels. Always loved theold school Slot Mags (even if they're not magnesium)


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    Default Re: Aluminum or Magnesium

    Hey that's cool man, just want to know for shure. I'll have to get some and try it. Now would you treat magnesium the same as aluminum with outgas?
    FrydaddY

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    Default Re: Aluminum or Magnesium

    I would,.... but it might also depend on cast,... or forged rims too. Somehow I think yours wil be cast though. If the forming type is unnown, I'll treat as Cast. Outgas for bout an hour at 50 degrees over cure temp of the powder being used.

    There's a guy on the forums "o1racing03" his name is Marc. He's a pretty good source for info oin the Alloys in aluminum.... maybe he can give good Mag info too. I'm certainly not an authority on this stuff..... He will be able to come up with the info. Somehow he has a lead or acquaintance who is a metallurgist or something....


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    Default Re: Aluminum or Magnesium

    Thanks again! Think I have every thing straight now. Going to do this tomorrow. Try to post sum pics.
    FrydaddY

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