electrolysis tank first timer

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inairam
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electrolysis tank first timer

Postby inairam » Thu Jan 28, 2016 6:04 pm

I set up my first electrolysis tank. The pictures are of the tank working on an exhaust manifold. The battery charger is showing over 8 amps @12 volts and it has be in the tank for 24 hours. My question is related to some some paint on the manifold that does not appear to be coming off. Should I expect it to?

20160128_135300.png
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bob in CT
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Re: electrolysis tank first timer

Postby bob in CT » Thu Jan 28, 2016 6:26 pm

Electrolysis paint removal seems to be more of a side benefit to the rust conversion process rather than a 100% effective method. I always seem to have some spots of stubborn paint that needs to be removed with aggressive wire brushing. You need to clean up your parts (and electrodes) anyway when they come out of the tank.

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Re: electrolysis tank first timer

Postby Bob McCarty » Thu Jan 28, 2016 6:28 pm

It may not come completely off, but the paint that doesn't should be much easier to remove. Probably a few strokes with a wire brush. That may also partly depend on what you're using for the electrolyte.

Bob
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inairam
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Joined: Wed Jul 08, 2015 10:24 am
Zip Code: 19342
Tractors Owned: 1948 with international 1000 loader
1949 with kub klipper belly mower.
1957 with c-2 mower & c-54 grader blade
1965 lo-boy with c-3 mower
1975 with homemade mower
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide
Circle of Safety: Y
Location: Glen Mills PA

Re: electrolysis tank first timer

Postby inairam » Thu Jan 28, 2016 6:34 pm

I am using thw a+h washing soda. I have to admit the warnings on the tsp put me off. One other question. It I replace the manifold with a piece of rebar and revirse the connection will that clean my 6 cathoids?
Last edited by inairam on Thu Jan 28, 2016 6:44 pm, edited 1 time in total.
When you only have 9 horsepower you need to know the names of all of the ponies!

Bob McCarty
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Re: electrolysis tank first timer

Postby Bob McCarty » Thu Jan 28, 2016 6:41 pm

It will be faster if you match the surface areas of the anode and cathode. One piece of rebar for the anode will probably get gunked up before the six in the tank are clean. If your rebar pieces aren't too hard to remove, you can also brush them off and put back in for the next batch.

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Don McCombs
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Re: electrolysis tank first timer

Postby Don McCombs » Thu Jan 28, 2016 6:53 pm

It's faster and cheaper to wire wheel them clean. :D

I use beam clamps to secure my cathodes to the container.

Image

I currently have two tanks. A five gallon bucket in which I use rebar and a 30 gallon tub in which I use old lawnmower blades as the cathodes. Just loosen the set screw to remove, let them dry and wire wheel.

This is a photo of the 5 gallon tank to see how it is set up. The 30 gallon tank is the same, but more cathodes.
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E Tank 1.jpg
E Tank 2.jpg
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Re: electrolysis tank first timer

Postby CapeCodCubs » Thu Jan 28, 2016 8:11 pm

My experience with E-tanks is to use TSP and have a lot of amps. A Schumacher charger with 200A will kick some butt with stubborn paint. I've put parts in with lots of paint and an hour later the rust and paint are gone. Wash the black residue off then refresh with a wire brush. Best part of an E-tank is that it is working when you go on to other stuff. Why wire brush when the E-tank can cook your parts for you.
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bob in CT
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Re: electrolysis tank first timer

Postby bob in CT » Thu Jan 28, 2016 8:39 pm

It does not matter which electrolyte you use for this purpose. The important factors are the conductivity and safety. Sodium hydroxide is great, but caustic and dangerous to eyes. I dumped a full box of washing soda in mine and the amps jumped significantly. What took overnight with a few ounces, took and hour to flip. The electrolyte is just a little slippery, which means it is dissolving a little fat from your skin so I always wear 15 mil gloves that I have around for mixing paints with hardener.

I also grew the size of the electrodes. I have a couple of broken harrow discs. NOW your talkin' surface area!

inairam
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Joined: Wed Jul 08, 2015 10:24 am
Zip Code: 19342
Tractors Owned: 1948 with international 1000 loader
1949 with kub klipper belly mower.
1957 with c-2 mower & c-54 grader blade
1965 lo-boy with c-3 mower
1975 with homemade mower
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide
Circle of Safety: Y
Location: Glen Mills PA

Re: electrolysis tank first timer

Postby inairam » Thu Jan 28, 2016 8:57 pm

It soulds like the tsp may be reacting with the paint more agressively than the washing soda acting as a stripper independent of the electrolysis process. I think I am current limited by the changer and not the electrolite solution. Maybe some changes for next gen tank.
When you only have 9 horsepower you need to know the names of all of the ponies!

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bob in CT
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Re: electrolysis tank first timer

Postby bob in CT » Thu Jan 28, 2016 9:28 pm

tsp does not react with paint.

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Re: electrolysis tank first timer

Postby BIGHOSS » Fri Jan 29, 2016 7:33 am

If your paint is sealed with no rust underneath, this process will not remove it very well. Remember, electrolysis is reacting to rust. If no rust present to remove, there is very little reaction to remove paint.
"Courage is being scared to death-but saddling up anyway".......John Wayne


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