Geoff's Science Garage - Electrolytic Rust Removal
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@TheGLOCK17shooter I would try it just make sure it doesnt short out and to clean it out with rocks and stuff after
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@ggariepy you can also use dc power converters i used one with 12 volts and 500ma it worked well but i broke it so now im using a 16v 1000ma transformer
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Can this be used to derust the inside of a Honda shadow 600 gas tank that is HEAVILY rusted? What technique do I use?
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Nice
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awesome...thanks heaps !
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I was thinking about plating the bell by the same process, but that would obviously involve more than simply switching connections. Nothing is now being plated, so there must be something I'm missing. By the way, as is obvious I'm a complete novice at this, so I don't know what I don't know, need to know, or should know. When I spoke of danger, I was thinking of life and property. I was thinking of circuit overloads, blowouts, and fire. I'll just buy more pie pans for the anode.
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Well, I bought another battery charger, a manual one. This one has settings for 2, 10 and 50 amps. I've been running it for about four days, 2 amps at night and 10 amps during the day, but I've been reluctant to use the 50 amp setting. Anyway, after almost nonstop usage for about four days, my bell still isn't back to it's original condition. Bubbles aplenty, and rusty water (I keep changing it), but I'm wondering how long it will take. No complaints, I'm learning. Any danger if I use 50 amps?
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Yes, it is steel, or iron, and magnets stick to it. It's not a very attractive bell, but I'm doing this for a friend of mine, who has moved away. She had a sentimental attachment to it but didn't take it with her when she saw how rusted it had become. My idea was to derust it and to surprise her by sending her the shiny bell she once had. This is how I got into the electrolysis game. Now I'm just trying to find a reasonably priced charger or Ac converter. Any suggestions?
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You have to understand that it will remove the rust, but the metal that was rusted is gone. There will be pits instead of rust.
I would not use the 50 amp setting. It shouldn't pose any danger to the bell, however it should not be necessary.
You do not have to change the water. It does not aid in the process.
Is the steel anode becoming rusty? Hitting it with a wire brush *might* improve performance. I am not sure on that point, but I would try it. Also rotate the bell.
ggariepy 3 months ago
I'd search on Craigslist for a good used unit, although a reasonably decent new one can probably be had for $40 at Harbor Freight, if you're in the USA.
ggariepy 4 months ago
By the way, this bell is steel? I.E. a magnet will stick to it?
ggariepy 4 months ago
The charger you have is only 3/4ths of 1 amp. The process will work, but it will be slow. If you have an extra car battery, or can wire some 6v batteries up in parallel, they'll deliver more current and speed things up. The charger I used in the video delivers 10A maximum. Your iron nail probably was working, just terribly slowly.
Removing rust does not require high voltage, but current affects the speed. Incidentally, rust is itself an electrochemical process; you're just reversing it!
ggariepy 4 months ago
The aluminum anode! It must be ferrous. Avoid stainless steel if possible.
*Any* old piece of steel will work.
ggariepy 4 months ago
how much baking soda do u have to use
flaxnard 5 months ago
@flaxnard Try a third of a cup of baking soda to 5 gallons of water. Add a little more at a time until you start seeing the bubbling take place. Be conservative with it: the more you put in, the more current passes through the water, and it's possible to overwhelm your power source, i.e. pop the circuit breaker on a battery charger or burn any connecting wires too small to handle the load. Make sure you do this outside if you're going to leave it unattended at all.
ggariepy 5 months ago