Page 1 of 2 12 LastLast
Results 1 to 25 of 27

Thread: Electrolysis Rust Removal Redux

  1. #1
    Join Date
    Feb 2009
    Location
    Central CA
    Posts
    350
    Post Thanks / Like

    Electrolysis Rust Removal Redux

    There are already threads on the subject, but rather than revive one and be accused of necroposting, I decided to start another, mostly just because. Anyway, if you haven't heard of it, electrolysis is a viable way to remove rust from iron or steel parts. It works really well, especially on parts that have nooks and crannies, but you can't be in a hurry. There are lots of web sites that can tell you how to do it; here's one:

    https://antique-engines.com/electrol.asp

    I have a pump that was downright disgusting when I took it apart...

    Before:

    Name:  Before.JPG
Views: 1266
Size:  200.3 KB

    During:

    Name:  During.JPG
Views: 1258
Size:  173.2 KB

    After:

    Name:  After.JPG
Views: 1199
Size:  157.5 KB

    Tim

  2. #2
    Join Date
    Apr 2012
    Location
    Montreal area Canada
    Posts
    1,100
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    You did paint them, did you?

  3. #3
    Join Date
    Feb 2009
    Location
    Central CA
    Posts
    350
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    Quote Originally Posted by snowbird View Post
    You did paint them, did you?
    No, nothing is painted yet. I did spray the parts with WD40 to keep the rust from coming back. I need to talk to the factory guys to find out what kind of finish they are supposed to have on them.

    Tim

  4. #4
    Join Date
    Mar 2005
    Location
    Under a Rock
    Posts
    6,227
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    I've used that method before....

    works great.
    Miller 211
    Hypertherm PM 45
    1961 Lincoln Idealarc 250
    HTP 221


    True Wisdom only comes from Pain.

  5. #5
    Join Date
    Apr 2008
    Posts
    432
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    I've used electrolysis many times also. I think I always used a battery charger as the electrical source. What is that you're using in photo 2?

  6. #6
    Join Date
    Feb 2009
    Location
    Central CA
    Posts
    350
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    Quote Originally Posted by hvw View Post
    I think I always used a battery charger as the electrical source. What is that you're using in photo 2?
    It's an old HP DC power supply I had laying around.

    Tim

  7. #7
    Join Date
    Aug 2012
    Location
    AR
    Posts
    2,078
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    The power supply was a great idea, if you have one. If someone wants to use a battery charger for electrolysis, it has to be a MANUAL one. The newer automatic chargers have a sensing circuit that looks for a battery. If it has an option for manual charging use that. They don't work for electrolysis in automatic mode.

  8. #8
    Join Date
    Apr 2008
    Posts
    432
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    I agree that the computer power supply would be ideal. The battery charger was always sketchy, but did work.

  9. #9
    Join Date
    Jun 2017
    Location
    AJO, ARIZONA
    Posts
    4,048
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    Quote Originally Posted by shortfuse View Post
    The power supply was a great idea, if you have one. If someone wants to use a battery charger for electrolysis, it has to be a MANUAL one. The newer automatic chargers have a sensing circuit that looks for a battery. If it has an option for manual charging use that. They don't work for electrolysis in automatic mode.
    So many of the modern battery chargers have gone the way of many welders...................inverter, I think the battery even has to have some residual voltage before the inverter chargers will work. I watched a video on fixing power tool batteries, and on both NI-CAD & LI-ION batteries the key to restoring their ability to charge was getting some voltage BACK into the battery by other means, the nicads can be "shocked with a welder to "jolt" it, after that a manual charge from an AC adapter of proper voltage. He used a small stick welder. The LI-ION were just manually charged the same way after bypassing the sensing circuit, after he got the voltage up to about 12 volts the charger would sense it and charge, amazing the $hit they're doing to us to make us buy overpriced tool batteries.
    IMPEACH BIDEN!
    NRA LIFE MEMBER

    UNITWELD 175 AMP 3 IN1 DC
    MIDSTATES 300 AMP AC MACHINE
    GOD HELP AMERICA!
    "Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety. BENJAMIN FRANKLIN

  10. #10
    Join Date
    Mar 2011
    Location
    Western Washington
    Posts
    10,551
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    ^^ Yep!!!! All for your safety

  11. #11
    Join Date
    Feb 2017
    Posts
    96
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    I just finished restoring this 100 year old Sasgen Derrick winch. It sat in the electrolysis bath for about 8 days. That took a lot of the rust off, but not all. I still had to go at it with wire wheels and a needle scaler. If I had left it in longer it probably would have gotten more off, but I was getting impatient. It is a great way to remove rust. I used scrap steel for anodes, but I may buy some carbon rods before the next project. They don't require cleaning like steel does.
    Attached Images Attached Images      
    Home tinkerer and old tool junkie

  12. #12
    Join Date
    Sep 2016
    Location
    American Samoa
    Posts
    309
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    That is a cool old winch.

  13. #13
    Join Date
    Mar 2011
    Location
    Western Washington
    Posts
    10,551
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    ^^ Only a spammer would say it works everytime...

  14. #14
    Join Date
    Sep 2016
    Location
    Detroit, Michigan
    Posts
    1,061
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    I've used electrolysis a number of times and only use it when absolutely necessary. I've had as good, or better results on irregular shapes soaking them in EvapoRust overnight, or a couple of days for heavily corroded pieces.
    Check out my bench vise website:
    http://mivise.com


    Miller Syncrowave 250DX
    Millermatic 350P with XR AlumaPro
    Miller Regency 200 with 22A feeder and Spoolmatic 3
    Hobart Champion Elite
    Everlast PowerTig 210EXT

  15. #15
    Join Date
    Apr 2008
    Posts
    432
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    Evaporust works as good and it's easier to use. Doesn't sting, no electrical and it leaves a black oxide finish. But, it's not readily available around here so you have to plan ahead. Fairly pricey for big stuff also.

  16. #16
    Join Date
    Jul 2011
    Location
    Bossier Parish La.
    Posts
    5,824
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    Quote Originally Posted by shortfuse View Post
    The power supply was a great idea, if you have one. If someone wants to use a battery charger for electrolysis, it has to be a MANUAL one. The newer automatic chargers have a sensing circuit that looks for a battery. If it has an option for manual charging use that. They don't work for electrolysis in automatic mode.
    You can connect the charger to a battery, then run leads from the battery to the electrodes in the electrolyte solution to overcome the auto battery mode. The charger then has a battery to sense and try to charge, make sure it is a chargeable battery though. One with a dead cell or otherwise is no good won't work.

  17. #17
    Join Date
    Apr 2016
    Location
    CA
    Posts
    8,037
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    I did this with a crankshaft out of a Kohler KT17 several years back using an older Exide Battery Charger. That battery charger has since failed but I think I have a manual battery charger from a Big Joe Pallet lift that could probably work for this. Thanks for reminding me about this.
    Lincoln, ESAB, Thermal Dynamics, Victor, Miller, Dewalt, Makita, Kalamzoo. Hand tools, power tools, welding and cutting tools.

  18. #18
    Join Date
    Jul 2011
    Location
    Bossier Parish La.
    Posts
    5,824
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    I have wondered how this would work out with a welding machine hooked up to it, pumping in 130-150 amps of DC power. It may take only minutes instead of days to de-rust something. Probably need a welding machine with a high duty rating to have a chance to make it work. Does anybody have a clue on if this is a feasible idea or not?

  19. #19
    Join Date
    Mar 2011
    Location
    Western Washington
    Posts
    10,551
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    Voltage controls amps.... I'm thinking you're gonna need a lot more voltage to get the amp draw up there of course you could add a catalyst to the water... but it still won't get up to the capacity of the welder.

  20. #20
    Join Date
    Dec 2013
    Location
    Mount Tabor VT
    Posts
    7,827
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    Quote Originally Posted by ndnchf View Post
    I just finished restoring this 100 year old Sasgen Derrick winch. It sat in the electrolysis bath for about 8 days. That took a lot of the rust off, but not all. I still had to go at it with wire wheels and a needle scaler. If I had left it in longer it probably would have gotten more off, but I was getting impatient. It is a great way to remove rust. I used scrap steel for anodes, but I may buy some carbon rods before the next project. They don't require cleaning like steel does.
    Never mind the winch, (it isn't correct anyway), that CJ is pretty!. Same color as mine. Mine is 1947 CJ2A. I've had it since 1969.
    An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.

  21. #21
    Join Date
    Dec 2013
    Location
    Mount Tabor VT
    Posts
    7,827
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    I have tried the process several times. When I hope to remove surface rust, it has worked just fine. Removing the rust inside an assembly, I have been less successful.

    I have a lathe thread syncronizer. It is ancient! By the time I bought it, it had laid on a cellar floor for I don't know how many years. It was seized, and there was little hope of freeing it to a functional state.

    I soaked it in oil years, did a molasses soak, used penetrating oil. Tried a battery charger & washing soda. All failed......or did they?

    I needed to use it. Clamped it in a vise, tried a strap wrench several times. My son sprayed it with Kroil. A day later it moved! A few subsequent sprays, it was utterly free!.
    An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.

  22. #22
    Join Date
    Mar 2011
    Location
    Western Washington
    Posts
    10,551
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    I found a couple candidates for rust removal buried on a job today One is a 12 gauge the other is a .22 probably a ruger 10-22

    Might be a while before I get to soaking these as we are busier than ever!!!

    Thought I was picking up a piece of metal pipe! turned out to be a 12ga.
    Name:  oconor-demo-12gabucket.jpg
Views: 353
Size:  112.0 KB
    Here is the 22
    Name:  oconor-demo-12ga.jpg
Views: 353
Size:  132.9 KB

  23. #23
    Join Date
    Dec 2013
    Location
    Mount Tabor VT
    Posts
    7,827
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    Stolen? Used in a murder? Particularly ugly divorce?

    I have customers, a Northern Italian immigrant about 80 with heavy accent, and his 2 generations ago Sicilian 59 year old wife.

    She was getting on his nerves one day. He was clowning around with a butcher knife; "...divorce Italian style!" She responded that her Sicilian grandfather did use a rifle to kill her grandmother as she was walking down the same driveway we were looking at. No charges were ever filed. In Vermont murders are rarely prosecuted. I'd guess after you do that sort of thing you bury the evidence.
    An optimist is usually wrong, and when the unexpected happens is unprepared. A pessimist is usually right, when wrong, is delighted, and well prepared.

  24. #24
    Join Date
    Mar 2005
    Location
    Under a Rock
    Posts
    6,227
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    Looks to be in pretty good shape for being buried in the ground.

    I hope you post up some pictures after its cleaned up.


    Sent from my iPhone using Tapatalk Pro
    Miller 211
    Hypertherm PM 45
    1961 Lincoln Idealarc 250
    HTP 221


    True Wisdom only comes from Pain.

  25. #25
    Join Date
    Mar 2011
    Location
    Western Washington
    Posts
    10,551
    Post Thanks / Like

    Re: Electrolysis Rust Removal Redux

    Quote Originally Posted by Willie B View Post
    Stolen? Used in a murder? Particularly ugly divorce?

    I have customers, a Northern Italian immigrant about 80 with heavy accent, and his 2 generations ago Sicilian 59 year old wife.

    She was getting on his nerves one day. He was clowning around with a butcher knife; "...divorce Italian style!" She responded that her Sicilian grandfather did use a rifle to kill her grandmother as she was walking down the same driveway we were looking at. No charges were ever filed. In Vermont murders are rarely prosecuted. I'd guess after you do that sort of thing you bury the evidence.
    Well being this is in a self declared 'sanctuary city' the local constabulary rarely prosecutes most crimes... unless you are a taxpaying legal citizen... then they'll go after you and make you pay!!!!

    I took a couple pics in the shop showing the crustiness and one spot on the 12ga that still had blueing! about 3 inches long and 1/3rd around the barrel.

    Name:  oconor-demo-12gaclose.jpg
Views: 311
Size:  37.3 KB
    Name:  oconor-demo-12gabluing.jpg
Views: 297
Size:  32.6 KB

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Page generated in 1,635,133,016.83597 seconds with 12 queries