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How do you remove Aluminum Corrosion

Discussion in 'The Hokey Ass Message Board' started by flt-blk, May 18, 2005.

  1. flt-blk
    Joined: Jun 25, 2002
    Posts: 4,941

    flt-blk
    Member
    from IL

    I have a 56 Studebaker Hawk dash insert and the Aluminum has corrosion spots. How do I remove the corrosion without destroying the dash?

    What looks like engine turning is actually pressed into the panel.
     
  2. magnet
    Joined: Jul 15, 2002
    Posts: 853

    magnet
    Member

    Eagle One mag cleaner...

    They have different types.. some for porus mags some for machined mags.. ask any billet rodder they will tell you how good the stuff works.. you need the stuff for finished surfaces/machined wheels.
     
  3. Tinman
    Joined: Mar 6, 2001
    Posts: 963

    Tinman
    Member
    from Orange, CA

    The Mag Cleaner can be a little harsh, especially on thin interior parts. I've seen it used and actually deepen the pits if not rinsed thoroughly. Since it appears that sanding would remove that awesome detail I'd try a nice high-end polish like Mother's Billet Polish (around $12-$14 for the black and gold tin) with a CLEAN rag or towel. It's pricey but it's a ****in' genie in a bottle.

    -Tinman
     
  4. Stromberg97
    Joined: Apr 6, 2005
    Posts: 278

    Stromberg97
    Member
    from Lowell, IN

    Try a 3M roloc disk...the plastic bristle ones. That will remove most of the corrosion...then clean it up with some aluminum polish. The back of the dash piece you could spray with zinc-chromate primer to help protect it. The zinc-chromate is used for aluminum and you could get it at most auto parts stores or paint shops.
     
  5. Green Goblin
    Joined: Mar 11, 2005
    Posts: 246

    Green Goblin
    Member

    I had some aluminum pieces from my 2000 Kawasaki polished by a guy that was actually contracted to do some aluminum repair/polishing on a few pieces in the Smithsonian Ins***ute :eek: :eek:

    I hate to say it but that corrosion has etched the actual surface of the aluminum. The only thing "any" aluminum polish is going to do is remove very limited amounts of the corosion. It will actually take quite some degree of polishing down into the aluminum to get the pits out. What makes me an expert you ask, well after having my pieces polished, I got antsy and decided to take it out on a nice January day here in chicago, got salt dust on the raw aluminum and I ended up with what you have today !!!!!! Boy was I ever :mad: :mad:
     
  6. Muttley
    Joined: Nov 30, 2003
    Posts: 18,501

    Muttley
    Member

    Leave it there, it looks cooler.:D
     
  7. polisher
    Joined: Jul 28, 2002
    Posts: 651

    polisher
    Alliance Vendor

    Not much you can do but polish it out if the metal is thick enough.
    I would start hunting for a replacement.
    There is no liquid polish or paste that will help it.
    Most will actually make it worse.
    got to be machined
     
  8. Jimv
    Joined: Dec 5, 2001
    Posts: 2,924

    Jimv
    Member

    try some regular old vinegar!!the red, not the white, wet a rag good & rub at on, keep doing that & see if it helps.
    I was on a minesweeper in the Navy & everything was alumn, br*** or SS on the ship( non Magnetic) & thats what we use to use.
    jimV
     
  9. flt-blk
    Joined: Jun 25, 2002
    Posts: 4,941

    flt-blk
    Member
    from IL

    I guess I don't have much to loose so I may try to knock it
    down with the stiff bristle idea.

    I might try the wheel cleaner to get an even sheen on the
    piece. I don't think anyone is repopping these yet and It
    is too big for me to do my own engine turning on a new
    panel.

    What about CLR or something like that, it worked good to
    clean the junk out of my Rochester 2G's.
     
  10. oldcarfart
    Joined: Apr 12, 2005
    Posts: 1,436

    oldcarfart
    Member

    use white or yellow scotchbrite and kroil, silikroil or liquid wrench as lubricant, or just get one from SASCO studebaker auto parts in south bend, indiana.

    I do studes & packards!!!!!

     
  11. danzee
    Joined: Jan 19, 2005
    Posts: 56

    danzee
    Member
    from ERIE,PA.


    Whatever method you use, do us all a favor & post a pic of how it turned out . DANZEE
     
  12. bowtiemyk
    Joined: Feb 3, 2005
    Posts: 175

    bowtiemyk
    Member

    Ever try Wenol? Worked great on a set or M/T valve covers I was going to blast & paint they were so bad, turned out almost like new.
     
  13. polisher
    Joined: Jul 28, 2002
    Posts: 651

    polisher
    Alliance Vendor

    wheel cleaner will eat the living **** out of it.
    That's how it works !!
    CLR is a cheapskates way to clean and destroy aluminum

    post from oldcarfart is a much better idea.is a better idea!
     
  14. Stromberg97
    Joined: Apr 6, 2005
    Posts: 278

    Stromberg97
    Member
    from Lowell, IN

    Never tried it, but I got a cool pic of the Wenol show car from Daytona a few years back. Gotta scan it though...
     
  15. oldcarfart
    Joined: Apr 12, 2005
    Posts: 1,436

    oldcarfart
    Member

    try to google "Fred Challender" or WENOL T-bucket or WENOL car.



     
  16. noboD
    Joined: Jan 29, 2004
    Posts: 8,988

    noboD
    Member

    Has anyone tried the mol***as trick on aluminum?? results??
     
  17. flt-blk
    Joined: Jun 25, 2002
    Posts: 4,941

    flt-blk
    Member
    from IL

    I tried schtchbrite with lubricant and was able to knock down most of the corrosion, now I am left with discoloration where the corrosion was.

    Wenol did the same thing.
    A short soak in CLR didn't do much.

    I know you recommended against it but I want to try
    the wheel cleaner and see if I can get an even sheen on the panel.

    I have checked the SASCO site and cannot find any dash
    inserts, am I looking in the wrong spot?
     
  18. mule
    Joined: May 24, 2004
    Posts: 300

    mule
    Member

    On aircraft we use a 3m clean and strip wheel, They can sometimes be called a coral wheel. The trick is to spin em fast and just do small touchs not heavy pressure, They are soft enough to leave the good ally, What you need to ***es if the parts are hard to get is if the corrosion is on the surface of set deep in the ally. If it's deep and you try and remove it you could be opening up a nasty can of worms. Sorry this is the only pic I could find
     
  19. mule
    Joined: May 24, 2004
    Posts: 300

    mule
    Member

    Just remebered, walnut husk blasting won't cause any discoloration. Need someone who is good on a blaster though
     
  20. polisher
    Joined: Jul 28, 2002
    Posts: 651

    polisher
    Alliance Vendor

    What part of wheel brightner, wenol and CLR will make it worse is not getting through?
    Aluminum is porous.
    The stuff you are using ectches into it and slowly eats it away.
    It may look better for 24 hours after that the chemical attack takes over.
    With Wenol it might be a couple of weeks because the oxidizers are milder.
     

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