Keg surface rust

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Keg surface rust

Postby davesims » Tue Jun 12, 2018 1:32 pm

Hi all

My brother in law has a stainless keg turned into a boiler, he has noticed he has a little surface rust inside on the bottom of the keg

What is the best way to remove this?
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Re: Keg surface rust

Postby scythe » Tue Jun 12, 2018 6:34 pm

Vinegar run.
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Re: Keg surface rust

Postby Professor Green » Tue Jun 12, 2018 6:51 pm

I'm sure there's a thread here somewhere about passivation of rust. Maybe search "passivation" see what comes up?

Cheers,
Prof. Green.
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Re: Keg surface rust

Postby Doubleuj » Tue Jun 12, 2018 7:51 pm

I’m no Boiley but the bloke who tigged up my boiler additions finished off with a ss pickling paste, perhaps that will help?
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Re: Keg surface rust

Postby scythe » Tue Jun 12, 2018 7:56 pm

It would.
Playing with it should be done with extreme caution and full PPE, it is nasty stuff.
Essentially nitric and sulphamic acid or hydrofluric acid.
Either way dont get it on your skin as it dissolves bone.

Vinegar is safer and will do a bit for your issue.
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Re: Keg surface rust

Postby Doubleuj » Tue Jun 12, 2018 8:01 pm

scythe wrote:It would.
Playing with it should be done with extreme caution and full PPE, it is nasty stuff.
Essentially nitric and sulphamic acid or hydrofluric acid.
Either way dont get it on your skin as it dissolves bone.

Vinegar is safer and will do a bit for your issue.

:text-+1: yeap, he described it to me and was very cautious, so if you do use it yourself follow the sds and advice from BOC or wherever you buy it from.
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Re: Keg surface rust

Postby davesims » Wed Jun 13, 2018 12:35 pm

Thank you all, i have some reading to do
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Re: Keg surface rust

Postby warramungas » Wed Jun 13, 2018 4:21 pm

Do a rum. If that cant clean it nothing will. :laughing-rolling:
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Re: Keg surface rust

Postby EziTasting » Wed Jun 13, 2018 7:11 pm

:laughing-rolling: :laughing-rolling: :laughing-rolling: Im hearing a lot about how someone is using under to clean cast iron camping ovens... Fantastic stuff, Molasses!
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Re: Keg surface rust

Postby LikkerSheWillLoveIt » Sun Sep 27, 2020 9:33 am

I know this is a very old thread, I got some of that pickling paste in my eye once, yes I had PPE on, being a stainless fabricator, using something everyday, you are bound to have “incidents” along the way.

It hurt, A LOT. A very very very long painful day in the hospital getting my eyeball flushed for over 6 hours. Stay away from the shit. I refuse to use it now. Manual polish or electro polish.
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Re: Keg surface rust

Postby wynnum1 » Sun Sep 27, 2020 10:16 am

LikkerSheWillLoveIt wrote:I know this is a very old thread, I got some of that pickling paste in my eye once, yes I had PPE on, being a stainless fabricator, using something everyday, you are bound to have “incidents” along the way.

It hurt, A LOT. A very very very long painful day in the hospital getting my eyeball flushed for over 6 hours. Stay away from the shit. I refuse to use it now. Manual polish or electro polish.

You where lucky to get away with not getting very serious injury as well as being corrosive some of these substances are very toxic and with eyes if get serious injury to one eye that can also effect the other eye .
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Re: Keg surface rust

Postby RC Al » Mon Sep 28, 2020 7:58 am

:text-+1:

I've since discovered the nicer was of doing this, 10% citric acid solution kept at 50-55 c for 1/2 hour. Going to do all my triclamps this way soon for giggles a few have been neglected and have some stains, the cheaper ones fair worse
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Re: Keg surface rust

Postby bluc » Mon Sep 28, 2020 1:47 pm

good tip rc :handgestures-thumbupleft:
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