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Cast iron rust removal #7378596
10/13/21 09:01 PM
10/13/21 09:01 PM
Joined: Sep 2013
Posts: 3,544
Nevada
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nvwrangler Offline OP
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I just picked up a big cast iron kettle. Like 5 or 10 gallon size. Its heavily rusted and needs cleaning and seasoning. Was thinking of bead blasting the out side and wire wheel to the inside. But could one do the elctltrocis method at least for the inside?

Ill post pics tomorrow of it

Last edited by nvwrangler; 10/13/21 09:02 PM.
Re: Cast iron rust removal [Re: nvwrangler] #7378600
10/13/21 09:10 PM
10/13/21 09:10 PM
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WI - Wisconsin
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AJE Offline
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Maybe consider soaking for a couple days in vinegar & then rinsing out with water

Last edited by AJE; 10/13/21 09:11 PM.

WTA Member
Re: Cast iron rust removal [Re: AJE] #7378603
10/13/21 09:15 PM
10/13/21 09:15 PM
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Nevada
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nvwrangler Offline OP
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That's a whole bunch of vinegar lol

Re: Cast iron rust removal [Re: nvwrangler] #7378608
10/13/21 09:24 PM
10/13/21 09:24 PM
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Posts: 3,167
Nebraska
Trapset Offline
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Nebraska
You can mix it 50/50 with water, it just takes a little longer. If it’s real bad you may find pin holes all the way through in spots.

Re: Cast iron rust removal [Re: Trapset] #7378612
10/13/21 09:29 PM
10/13/21 09:29 PM
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Nevada
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nvwrangler Offline OP
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Originally Posted by Trapset
You can mix it 50/50 with water, it just takes a little longer. If it’s real bad you may find pin holes all the way through in spots.



I hope not but for 75 bucks i took the chance.

Re: Cast iron rust removal [Re: nvwrangler] #7378627
10/13/21 09:48 PM
10/13/21 09:48 PM
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Indiana
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Providence Farm Offline
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Indiana
In the past I just oiled and threw into a fire dug out of the ash the next day and the rust is gone.

Re: Cast iron rust removal [Re: nvwrangler] #7378643
10/13/21 10:04 PM
10/13/21 10:04 PM
Joined: Jan 2011
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KY
trapperbless Offline
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KY
Scouring pads and some elbow grease will do the trick.Keep rinsing until the water is clear. Oil it up good and it should be good until you need it next. Small kettle like that shouldn’t take to long to do unless the rust is extremely bad.

Re: Cast iron rust removal [Re: nvwrangler] #7378718
10/14/21 04:31 AM
10/14/21 04:31 AM
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Michigan
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Trapper Dahlgren Offline
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fire and start over seasoning , it will take a few coat of lard

Re: Cast iron rust removal [Re: nvwrangler] #7378756
10/14/21 06:05 AM
10/14/21 06:05 AM
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Michigan
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GWGjr Offline
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Electrolysis works well to clean up the interior.

Re: Cast iron rust removal [Re: nvwrangler] #7378760
10/14/21 06:08 AM
10/14/21 06:08 AM
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south east lancaster co. PA.
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TRAPPER TOM Offline
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lye bath in water. let it soak till its clean. lye wont hurt the cast metal


PASS IT ON OR LOSE IT
Re: Cast iron rust removal [Re: nvwrangler] #7378766
10/14/21 06:16 AM
10/14/21 06:16 AM
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Posts: 373
ontario canada
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Knappett Offline
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I did a cast iron griddle a few days ago by soaking it in vinegar and it worked good. I did a frying pan in a hot fire and it warped a bit. but that could have been my fault. either way would work for a kettle.

Re: Cast iron rust removal [Re: Knappett] #7378791
10/14/21 07:03 AM
10/14/21 07:03 AM
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Indiana
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Providence Farm Offline
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Originally Posted by Knappett
I did a cast iron griddle a few days ago by soaking it in vinegar and it worked good. I did a frying pan in a hot fire and it warped a bit. but that could have been my fault. either way would work for a kettle.



I guess it could possibly crack in a fire if to hot? I have seen several with a crack in the bottom that could be where the came from.

Re: Cast iron rust removal [Re: nvwrangler] #7378794
10/14/21 07:05 AM
10/14/21 07:05 AM
Joined: Feb 2020
Posts: 2,660
Indiana
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Providence Farm Offline
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Indiana
Originally Posted by Knappett
I did a cast iron griddle a few days ago by soaking it in vinegar and it worked good. I did a frying pan in a hot fire and it warped a bit. but that could have been my fault. either way would work for a kettle.



I guess it could possibly crack in a fire if to hot? I have seen several with a crack in the bottom that could be where the came from.?

Re: Cast iron rust removal [Re: nvwrangler] #7378850
10/14/21 08:17 AM
10/14/21 08:17 AM
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Green County Wisconsin
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GREENCOUNTYPETE Offline
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I wire wheeled one recently turned out good

I thought to stop part way through and take a picture , then again after washing and when all reasoned I went a little heavy with the lard so some spots pooled that is what that is in the finished pan

[Linked Image]
[Linked Image]
[Linked Image]


America only has one issue, we have a Responsibility crisis and everything else stems from it.
Re: Cast iron rust removal [Re: nvwrangler] #7378949
10/14/21 10:53 AM
10/14/21 10:53 AM
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The Hill Country of Texas
Leftlane Offline
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I read about guys who stay away from vinegar and instead use wire wheels and then table salt as a grit and a potato cut in half for basically a sanding block.

I can tell you the smell of rust being soaked off with vinegar makes me gag.


“What’s good for me may not be good for the weak minded.”
Captain Gus McCrae- Texas Rangers


Re: Cast iron rust removal [Re: nvwrangler] #7378954
10/14/21 11:10 AM
10/14/21 11:10 AM
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Green County Wisconsin
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GREENCOUNTYPETE Offline
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I will wash with vinegar after the major rust is off but can't see using gallons of it to soak $$$ and yes it smells a bit.

yup I am that cheap 1.79 a gallon seems a waste


America only has one issue, we have a Responsibility crisis and everything else stems from it.
Re: Cast iron rust removal [Re: nvwrangler] #7379127
10/14/21 04:28 PM
10/14/21 04:28 PM
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St. Louis Co, Mo
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BigBob Offline
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If you already have it in the blaster why wouldn't you just do the inside too?????!


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Re: Cast iron rust removal [Re: nvwrangler] #7379304
10/14/21 08:28 PM
10/14/21 08:28 PM
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nvwrangler Offline OP
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Couple of pics. Its 20 inches wide by 12 inches deep should make a pot of beans once cleaned up. Sitting next to a 14 inch dutch oven .

[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]

I guess the rust isn't as bad as i thought. Think I'll sand blast it then sand and season.

Last edited by nvwrangler; 10/14/21 08:30 PM.
Re: Cast iron rust removal [Re: TRAPPER TOM] #7380145
10/16/21 12:11 AM
10/16/21 12:11 AM
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AJE Offline
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Originally Posted by TRAPPER TOM
lye wont hurt the cast metal
It can be dangerous to work with though.


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Re: Cast iron rust removal [Re: nvwrangler] #7380184
10/16/21 04:47 AM
10/16/21 04:47 AM
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Michigan
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Trapper Dahlgren Offline
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nice fine !!! lets see it when finishes

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