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Electrolize de-rusting thread

Discussion in 'The Hokey Ass Message Board' started by Samster, May 23, 2013.

  1. Rusty O'Toole
    Joined: Sep 17, 2006
    Posts: 9,475

    Rusty O'Toole
    Member

    I first used this method of cleaning parts more than 10 years ago, my test piece was an old VW Rabbit wheel. After cleaning it off, I painted it with rust paint and hung it on the wall for a garden hose reel. More than 10 years out in the weather and it has no rust on it.

    The process not only removes rust it seems to kill the rust and prevent the part from rusting again.
     
  2. Samster
    Joined: Sep 29, 2010
    Posts: 185

    Samster
    Member
    from Belgium

    seems like a good idea to apply VW-parts for too! ghehheh..

    meanwhile ..
    [​IMG]
     
  3. To use a cheap battery charger include the batter. Avoid the temptation to go faster quicker more power etc. It works as is as good as a caustic hot tank and is a heck of a lot safer and eco friendly. If you want to improve it, Heat the water . A water bowl heater for cattle should do it well. Even a 250 watt infa red bulb would work shining down on it. Or put the barrel in the hot sun. If it is black that would get very warm.
    Iron bar at the side . Because it is an electrolyte the mixture conducts nicely as is. Results improve as voltage approaches 15volts.
    If you want a quick way use booster cables from the battery of a running vehicle. Not practical long term but just fine for a quick trial.
    Dont go crazy. That is a sickness. This system works fine as is, doesnt need the bigger better louder richer quicker shinier approach.
    Don
     
  4. Interesting! Tell me more. Where would one find the materials for carbon anodes?
     
  5. gas pumper
    Joined: Aug 13, 2007
    Posts: 2,955

    gas pumper
    Member

    Check Mcmaster-Carr. or Amazon.

    Carbon stock, plate, bar and round, used to be used in EDM machining for cutting odd shaped dies and punches. Probably still is where shapes that a wire EDM can't do.
     
  6. 26 roadster
    Joined: Apr 21, 2008
    Posts: 2,015

    26 roadster
    Member

    head the warnings!!!!!! the gas that comes off is poisonous and flammable, DO not breath and ventilate well!
    Try the Arm & Hammer washing soda when you wash up, good stuff!
     
  7. Atwater Mike
    Joined: May 31, 2002
    Posts: 10,490

    Atwater Mike
    ALLIANCE MEMBER

    Actually, the ARM & HAMMER washing soda is the recommended detergent to add to your water beforehand. Buy a box for this operation, (and for washup afterward)

    When the concrete crew poured my shop pad, I bought a large box of plastic sheeting (for the 'moisture barrier')
    After the pad was finished, I had half the roll left...Large roll of heavy black plastic.

    The forms and materials were mine, so I cut the long ones to 12 feet, stacked 2 of them widthwise, nailed 4 foot ends on them, and draped some of the black sheet plastic over.
    My Model A frame went onto the plastic, then got filled with water...and Arm & Hammer soda mixture.
    Small Schauer battery charger & 12 volt battery and I had a gray frame in 3 days!
    I did some axles, tubes & I-beams, then backing plates, drums, and some Houdaille shocks.
    Model T rear springs, (disassembled) Man, what a bath tub!

    Like havin' "all new sh!t"...
     
  8. I would like to see pic's of this. ^^^^^
     
  9. Samster
    Joined: Sep 29, 2010
    Posts: 185

    Samster
    Member
    from Belgium

  10. cryobug
    Joined: Jun 6, 2005
    Posts: 362

    cryobug
    Member

  11. RPM
    Joined: Feb 5, 2005
    Posts: 204

    RPM
    Member

    So will this take off grease and oil? Can you hot tank a block with this process?
     
  12. No.
     
  13. gas pumper
    Joined: Aug 13, 2007
    Posts: 2,955

    gas pumper
    Member

    I didn't take before pictures because I wasn't confident this would work. But this part looked as bad as the brake drum shown a couple of posts up.
    it soaked for 3 days. For scale, it's 8 inch diameter.

    Could have went a little longer to get all the black out of the rust pits, but I'm happy.
     

    Attached Files:

  14. kennb
    Joined: Jan 8, 2008
    Posts: 178

    kennb
    Member

    I''ve been using this technique for rust removal for years as well. I have a large plastic tub and I'm going to put a bare small block in it after I degrease and power wash it. Ken
     
  15. Samster
    Joined: Sep 29, 2010
    Posts: 185

    Samster
    Member
    from Belgium

    I'm looking for a serious tub too, it'll run overhours coming months I think.

    Running three large buckets at the same time now
     
  16. big M
    Joined: Mar 22, 2010
    Posts: 709

    big M
    Member

    Children's wading pools are great for de-rusting larger items, and cheap too.

    ---John
     
  17. Samster
    Joined: Sep 29, 2010
    Posts: 185

    Samster
    Member
    from Belgium

    heared some things about that indeed, but what do you place as donor to do so?

    second, does anybody have a good way to remove the black residue on the surface after the bath? Tend to get lazy now, so if the bit of brushingoff could be eased, I'm all ears!?
     
  18. Click on the link in my post
     
  19. Samster
    Joined: Sep 29, 2010
    Posts: 185

    Samster
    Member
    from Belgium

    [​IMG]

    two wheelcaps came out like this

    got a good tip to put them into a bath of citric acid (yes the eatable one from the candy) for another day.. works like a charm and all the black was gone!
    [​IMG]
     
  20. nali
    Joined: Sep 15, 2009
    Posts: 828

    nali
    Member

    Some people sometime ask about using a huge source of Amperes.
    I once used a arc welder , with big rectifier diodes to have DC.
    I didn t see any improvement.
    I read ( I can t remember where ), that museum use this technique to remove rust from rusted parts afters centuries under the sea.
    They use a really low voltage/ amperes. It takes longer, up to months, but doesn t make any damage.
    I d have to find the source of this info ...
     
  21. skeletor
    Joined: May 25, 2013
    Posts: 2

    skeletor
    Member

    Absolute genius solution gentlemen ( used loosely) I have to try this out.

    Science is bitchin!
     
  22. Samster
    Joined: Sep 29, 2010
    Posts: 185

    Samster
    Member
    from Belgium

    I'm getting busy on a fifties child-charriot (?) for the moment.
    Also got me a couple of 1000L basins the coming weekend..

    Now I'm wondering if it would be smart to suspend the entire flathead block in it, instead of only filling up the waterskirts..?

    good to see this turned out to be a usefull tread for some folks uphere!


    cheers
     
  23. Samster
    Joined: Sep 29, 2010
    Posts: 185

    Samster
    Member
    from Belgium

    from right to left (logical as I am) :
    -rusty crusty start
    -after the electrolysis
    -after the citric acid
    [​IMG]
    all I did for the rest was brushing off with a soft brush, and putting rustblock oil on it.
     
  24. gas pumper
    Joined: Aug 13, 2007
    Posts: 2,955

    gas pumper
    Member

    Ok, citric acid seem to come as a powder. Amazon has it.

    How strong or weak a solution do you use??

    And maybe vinegar would also work as a mild acid for the final wash?

    frank
     
  25. Samster
    Joined: Sep 29, 2010
    Posts: 185

    Samster
    Member
    from Belgium

    I mixed a kg into 20litres of hot water for this, could be a bit less I think, you actually see the black going. Left one in for a day, but result was the same as after four hours. I bought it from a wine shop, they seem to put it into big barrels to change the taste. Prices are far better than candyshops hahhah
     
  26. Samster
    Joined: Sep 29, 2010
    Posts: 185

    Samster
    Member
    from Belgium

    the chrome (or what was left of it) does seem to come off my hubcaps..
    the black one lies in the acid now

    [​IMG]

    question is wether it would have stayed on if I had put em on in the state they were..

    this weekend I get my tanks for the larger parts so we can move up a gear!
     
  27. gas pumper
    Joined: Aug 13, 2007
    Posts: 2,955

    gas pumper
    Member

    For us traditional guys still in a non-metric world:), would that be about a pound to 4 gallons? probably close enough.
     
  28. Samster
    Joined: Sep 29, 2010
    Posts: 185

    Samster
    Member
    from Belgium

    yes, two spoons and a cup will do too :)
     

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