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wbecker 
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Joined: 29 Oct 2009
Location: STL
Points: 837
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 Topic: Electrolysis
Posted: 15 Apr 2011 at 7:39pm |
I have been using my electolysis tank for a couple months now.
My question is: what is the black stuff on the parts that come out of the tank?
I scrub with Schotch Bright and it is still has a lot of the black stuff on it.
I don't think I would want to prime with the black stuff still on the part.
So, looks to me like I still need to bead/sand blast to get ready for primer, if so what is the point of the electroysis?
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Allis B, IB, Low B, G, D10, JD M, 8KCAB, C152
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Bill_MN
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Joined: 12 Sep 2009
Location: Sioux Falls, SD
Points: 1466
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Posted: 15 Apr 2011 at 7:46pm |
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Electrolysis turns red rust into black oxide, a non reactive harmless substance. It can be painted over when it dries, but it's better to
wire brush and wash it off with soap and water before prepping for paint. Get off what you can and paint over the rest.
Electrolysis is still useful because most blasting will not get tough rust or lime scale off as cleanly or in places you can't reach.
Edited by Bill_MN - 15 Apr 2011 at 7:54pm
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1951 WD #78283, 1918 Case 28x50 Thresher #76738, Case Centennial B 2x16 Plow
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JoeM(GA)
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Joined: 12 Sep 2009
Location: Cumming,GA
Points: 4728
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Posted: 15 Apr 2011 at 7:58pm |
if it's not all coming off with a rub of the scotch pad, you may want to get a soft fine brass bristle brush. You may also need a bit more time cooking, should come off with little to no effort. The best reason to use it is that it's working while you do other things (like work) and it does no damage to the parts. I usually pull my parts after about 12 hours give them a quick brush and back in the soup for a bit more time. Got to love any system that will clean and de-rust parts gone this far! 
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Allis Express North Georgia
41 WC,48 UC Cane,7-G's,
Ford 345C TLB
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wbecker
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Joined: 29 Oct 2009
Location: STL
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Posted: 15 Apr 2011 at 8:22pm |
Ok, thanks for the info.
Next question is: can the part be left in the tank too long?
If so what would happen?
Thanks, Bill b
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Allis B, IB, Low B, G, D10, JD M, 8KCAB, C152
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 83926
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Posted: 15 Apr 2011 at 8:28pm |
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its a chemical reaction with the rust . when that is gone, the reaction stops. you can leave steel parts in the fluid for a week, will not hurt.. Dont leave aluminum or similar in the tank.
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Like them all, but love the "B"s.
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