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Thread: Electronic Rust Removal

  1. #1
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    Default Electronic Rust Removal

    hJust read about this in Handy. Using a battery charger, a plastic tub, water, iron or steel electrode, and washing soda you can remove rust from metal parts.

    You use about 1/3 to 1/2 cup of soda per 5 gallons of water in a plastict tube. Make sure the battery charger is off and connect the positive teriminal to the electrode and negative to the piece that needs the rust removed. Be careful not to reverse this, for it could disolve the piece. Submerge the rust piece in the water solution and than insert the electrode into the tub so that it is partialy protruding from the water.

    Set the charger to a low charge rate and turn it on. When small bubbles come off the work piece you know it is working. Moderatly rusty objects may take a few hours to become rust free while heavily rusted objects may be left overnight. When the bubbles stop forming turn off the power, remove the object and rinse thourghly. Treat with a light coat of oil to prevent flash rust from forming.

    They give some web sites and I will try and type them in correctly.

    http://www.instructables.com/id/Elec...oval-aka-Magic

    http://www3.telus.net/public/aschoep...lyticrust.html


    I might have to give this a try.

    Chad
    There are three ways to do things: The right way, the wrong way and my way.

    Three Little Birds Love is My Religion

  2. #2
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    Default Re: Electronic Rust Removal

    Here is an example from one of the sites.





    Chad
    There are three ways to do things: The right way, the wrong way and my way.

    Three Little Birds Love is My Religion

  3. #3
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    Default Re: Electronic Rust Removal

    Ok ,so if I put the car in the swimming pool?
    Try to work out what the marketing guy wants you to do then do precisely the opposite.

  4. #4
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    Default Re: Electronic Rust Removal

    Quote Originally Posted by PeterSibley View Post
    Ok ,so if I put the car in the swimming pool?

    Don't worry, you will not be the first person doing so.


  5. #5
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    Default Re: Electronic Rust Removal

    LOL

    Take note, that just because it may remove the rust it does nothing to repair the pitted metal beneath the rust.

    Chad
    There are three ways to do things: The right way, the wrong way and my way.

    Three Little Birds Love is My Religion

  6. #6
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    Default Re: Electronic Rust Removal

    I'm pretty sure Hughman has posted here about using this same procedure. Pretty cool stuff.


    Steven

  7. #7
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    Default Re: Electronic Rust Removal

    It does work well.. I've been cleaning up old engine parts using that method.. Just a few notes.. It is sort of "directional".. That is, it removes rust with a priority for the area in direct line of sight of the electrode. I use 3' re-bar as the electrode, tied together with copper wire and ground clamps and encircle the item in a cut-off 55 gallon plastic drum. I position the rebar in and around the item(without touching it) with 1x2 boards with 1/2 " holes drilled in them that are positioned across the top of the drum. I use small spring loaded clamps to regulate the height of the re-bar.. This is of course for larger items. I guess that swimming pool would work if you added the sodium carbonate in the appropriate amount. The rebar works well as it is cheap and can be removed when covered with the removed rust, wire brushed off and reuesd again.

  8. #8

    Default Re: Electronic Rust Removal

    I used this method in the restoration of an old table saw:

    Saw as found:


    Blocked and ready. The expanded metal is my electrode. As has been mentioned, if there's a downside to this procedure it's that it tends to work line-of-sight. This allowed exposure to the entire table top:



    Table top in the soup and cooking:



    Out of the soup Mid-way through (after 6 or 8 hours).



    finished product:



    I've got a smaller bath that gets used a fair bit for smaller articles (hand planes etc). This is an extremely gentle and effective method for removing rust.

    Rob

  9. #9
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    Default Re: Electronic Rust Removal

    I think that I'm going to have to find something rusty just to check this out.

    Chad
    There are three ways to do things: The right way, the wrong way and my way.

    Three Little Birds Love is My Religion

  10. #10
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    Default Re: Electronic Rust Removal

    I think that I'm going to have to find something rusty just to check this out.
    What would you like me to send you? Plenty to choose from here
    Carpe the living sh!t out of the Diem

    I'd rather look back at my life and say "I can't believe I did that" instead of being there saying "I wish I'd done that"

  11. #11
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    Default Re: Electronic Rust Removal

    I have some pieces from an old trailer that I plan on using to work modify the Balboa trailer. I may try to de-rust these using this method.

    BTW methinks that by the time you ship them here and back that you might actually have spent enough money to buy a new non-rusted thingamijiger.

    Chad
    There are three ways to do things: The right way, the wrong way and my way.

    Three Little Birds Love is My Religion

  12. #12
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    Default Re: Electronic Rust Removal

    As a matter of interest - there are other ways. I've got a 20 litre (5 gal) plastic bucket full of acid in the backyard. Just drop said item in - pick it out an hour or two later and rinse it off. No good for any items with seams - can't guarantee to neutralise the acid that seeps into the seams.
    Carpe the living sh!t out of the Diem

    I'd rather look back at my life and say "I can't believe I did that" instead of being there saying "I wish I'd done that"

  13. #13
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    Default Re: Electronic Rust Removal

    I've never tried it but it does work I'm told. Your not supposed to run more than 4 amps though, of course you'd probably need more for a car in a swiming pool. I tried it on a rusty chasity belt once but she drowned before it came loose so I went in search of another.

  14. #14
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    Default Re: Electronic Rust Removal

    Just last week I de-rusted a couple of small hand tools with something called "Naval Jelly", courtesy of Home Depot. It seems that it is mostly phosphoric acid in gel form. Worked reasonably well.

    Kaa

  15. #15
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    Default Re: Electronic Rust Removal

    What are the bubbles? This might require a caution about trying it in an unvented space, if you're doing a large object. Any chemists here today?

  16. #16
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    Default Re: Electronic Rust Removal

    The recomendation was to do it in a well ventallated space. I forgot to add that statement.

    Chad
    There are three ways to do things: The right way, the wrong way and my way.

    Three Little Birds Love is My Religion

  17. #17
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    Default Re: Electronic Rust Removal

    I believe the bubbles are hydrogen and oxygen resulting from the electrolytic splitting of the water. Definitely do this in a well ventilated space and no open flames!

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