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Technical Leading on aluminium

Discussion in 'Traditional Customs' started by tikiwagon13, Dec 23, 2013.

  1. tikiwagon13
    Joined: Feb 23, 2011
    Posts: 373

    tikiwagon13
    Member

    I've done a little leading, I'm doing some work with an aluminium bodied car and I am wondering about leading on aluminium, anything I need to know? I can't see it not working, I'm just wondering if there are any "gotchas" I should be aware of.

    Thanks


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  2. john worden
    Joined: Nov 14, 2007
    Posts: 1,836

    john worden
    Member
    from iowa

    You will be the first to lead aluminium.
     
  3. 32v
    Joined: May 20, 2007
    Posts: 952

    32v
    Member
    from v.i.

    use muggy weld rod
     
  4. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,476

    dreracecar
    Member
    from so-cal

    Mix in some lead powder in with some bondo
     
  5. Irrational Metalworks
    Joined: Feb 5, 2007
    Posts: 589

    Irrational Metalworks
    Alliance Vendor
    from DFW

    It's aluminum! Why not pound it out and do it right? Lead is just old bondo anyways!
     
  6. 66tintop
    Joined: Nov 7, 2012
    Posts: 450

    66tintop
    Member
    from Canada

    I'm thinking you are heading for a fugly mess , I wouldn't want to try !
     
  7. tikiwagon13
    Joined: Feb 23, 2011
    Posts: 373

    tikiwagon13
    Member

    I've pounded out what I can, there are a few spots I can't get at the backside.


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  8. tikiwagon13
    Joined: Feb 23, 2011
    Posts: 373

    tikiwagon13
    Member

    Yeah, I'm wondering about that too, that's why I'm asking.


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  9. jkeesey
    Joined: Oct 12, 2011
    Posts: 652

    jkeesey
    Member

    I cant see leading aluminum turning out too well. Maybe weld on some more aluminum and grind it back down.
     
  10. theHIGHLANDER
    Joined: Jun 3, 2005
    Posts: 10,820

    theHIGHLANDER
    Member

    In the sense we know and understand it doesn't work. There's ways to solder aluminum for very specialized applications but the volume needed for body solder would be cost prohibitive. As much as I hate to say it, mud it. You can use Allmetal, costly and tricky at 1st, or you can prep as needed, spray some polyester primer on the area, rough it up and fill that. It should hold long after the worms gotcha...
     
  11. Stretchmobile
    Joined: Oct 29, 2013
    Posts: 108

    Stretchmobile
    Member
    from So Cal

    I would think the temp that lead melts would be really close to the temp that aluminum anneals and it would be too soft to work. A little too much heat and your body is in a puddle on the floor.
     
  12. Gerry Moe
    Joined: Jan 29, 2006
    Posts: 498

    Gerry Moe
    Member

    Dissimilar metals don't like each other, electrolysis happens between the two constantly. Alumoloy might work but in the end bondo is where you will end up.
     
  13. prpmmp
    Joined: Dec 12, 2011
    Posts: 1,132

    prpmmp
    Member

    Don't be afraid of body filler!! Todays adhesives and fillers are outstanding!! Hell Audi and other car manufactures glue aluminum frames together(no heat distortion). Pete
     
  14. khead47
    Joined: Mar 29, 2010
    Posts: 1,789

    khead47
    Member

    I really don't know, but why don't you try it on some s****, and let us know how it worked out. About dissimiler metals and electrolisis, some lead on steel body panels is still good after decades.
     
  15. Brad54
    Joined: Apr 15, 2004
    Posts: 6,022

    Brad54
    Member
    from Atl Ga

    Lead won't adhere to aluminum.
    Go get a piece of s**** aluminum and some heavy gauge electrical soldier and give it a shot.

    -Brad
     
  16. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,476

    dreracecar
    Member
    from so-cal

    Lead will not stick to steel by itself, one has to "TIN" the area first, and then the lead sticks to the tinned area.
     
  17. pimpin paint
    Joined: May 31, 2005
    Posts: 4,937

    pimpin paint
    Member
    from so cal

    Hey,

    I can't think of an area on an aluminum bodied car where the use of lead or plastic filler would be an exceptable route to take for a repair, but I'll admit, I haven't seen it all:eek:
    Are you sure you can't access the low area from behind with a pry pick, or pry rod, raise the area, and metalfinish it? Whata 'bout the use of a '' Hillbilly-Pulltab''-take a small machine screw together with a nut, one big enough to grab with some vise-grips or a small slide hammer, grind the low area, and embed the machine screw, head down in some two-part epoxy into the lowest part of the dent. Let the epoxy kick whyle you hold the screw straight up. When the epoxy kicks, grap the nut with some big vise grips or grap it with slide hammer, and give it a good yank. With two or three pulls, the metal should be at or above normal contour to the surrounding metal. Grind off the epoxy, not the aluminum, and tap down any high areas, and vixen file the area to finish. If you're alittle below contour, try again with the epoxy and screw/nut and slide hammer.

    The acid used to work 30/70 or 50/50 solder on carbon steel will cause major paint trouble when used on 1100 or 3003 series aluminum:(

    Sent from a computer old enought to have a foot pedal
     
  18. toxic waste
    Joined: Dec 18, 2011
    Posts: 383

    toxic waste
    Member
    from Iowa

    They make a aluminum welding rod that is used with a torch . Go to your welding supply co. And ask . Its a low temp filler rod . You can weld beer cans with this stuff.
    Toxic Waste
     
  19. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,476

    dreracecar
    Member
    from so-cal

    100_0987.JPG
    Some times a piece gets overworked so much that there is not much left to do but either to use a little fill or replace the entire piece. Owner wanted to keep as much of the original body as possible so I wound up replaceing patches of the bad spots and using a thin glaze to even things out, couldnt pick an file ---too many thin spots where the previous bodyguy used a pick-axe and a grinder.
     

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  20. tikiwagon13
    Joined: Feb 23, 2011
    Posts: 373

    tikiwagon13
    Member

    Thanks for the input guys, bongo is a no go as I'm keeping the aluminium bare, I'm going to try a couple of things, I'll let you know it comes out.


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  21. pimpin paint
    Joined: May 31, 2005
    Posts: 4,937

    pimpin paint
    Member
    from so cal

    Oooooh! is that a Tom Hanna built original:)

    On the subject of the previous '' bodyguy's '' work.....more like used a dull hachet and a blindfold:rolleyes:
     
  22. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,476

    dreracecar
    Member
    from so-cal

  23. Gerry Moe
    Joined: Jan 29, 2006
    Posts: 498

    Gerry Moe
    Member

    My bad I thought the question was could he use lead on aluminum so the simple answer from me should have just been no
     
  24. Rusty O'Toole
    Joined: Sep 17, 2006
    Posts: 9,756

    Rusty O'Toole
    Member

    Lead fill on a steel car appears different from the steel. If you don't mind your filler showing you can use plastic filler with aluminum like all-metal or metal-2-metal.

    If you want to run bare aluminum and no filler showing you will have to make new panels and get them perfect. There is no other way, no filler you can use that will not show. And of course, lead body solder will not stick to aluminum.
     
  25. rexrogers
    Joined: Sep 18, 2007
    Posts: 1,033

    rexrogers
    Member

    IF you really want to use a lead type filler on the aluminum you might try contacting Fay Butler, i have spoken to him about doing it years ago and he was the only one i know of that had some ideas. It has been to long and i don't recall what they were. it would have to be an aluminum based soldering alloy to work i believe.
     
  26. fordcragar
    Joined: Dec 28, 2005
    Posts: 3,198

    fordcragar
    Member
    from Yakima WA.

    I saw Lazze use lead on aluminum about seven years ago, at one of his cl***es. I can't remember what his process was, but he did it.
     
  27. mgtstumpy
    Joined: Jul 20, 2006
    Posts: 9,279

    mgtstumpy
    Member

    Aluminium is not a ferrous metal so lead won't work. Ferrous metals include steel and iron. Non ferrous metals are alloys as they don't contain iron.
     
  28. tikiwagon13
    Joined: Feb 23, 2011
    Posts: 373

    tikiwagon13
    Member

    Lead is also a non-ferrous, it does not contain iron and is not magnetic. Some alloys are ferrous, some aren't.


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  29. junkman8888
    Joined: Jan 28, 2009
    Posts: 1,082

    junkman8888
    Member

    Greetings! First, you say you want to use lead filler on aluminum, which can't be done, then you say "bondo is a no go" because you are going to leave the aluminum "bare". The question I have is this really you or is it the eggnog talking?

    EDIT: Did a quick "google", which you should have done, found out that Johnson's Manufacturing Co offers an aluminum solder, but it is not a filler. Also found some interesting info on "Patientsonline", apparently FoMoCo has taken out a patient for soldering aluminum panels together, involves a flux process and then solder but still no filler.
     
    Last edited: Dec 24, 2013
  30. john worden
    Joined: Nov 14, 2007
    Posts: 1,836

    john worden
    Member
    from iowa

    I believe body solder or "lead" is an alloy of lead and tin. 30/70 or 60/40 etc.
    Non ferrous metals cannot be TINNED with ferrous metal. Science 101
     

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