What's this?
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Sailman
- Rumrunner
- Posts: 556
- Joined: Wed Aug 21, 2019 7:02 am
What's this?
Few months back I finished up two twenty inch sections for a CCVM column. Well today I got around to doing the vinegar run. After I shut down I washed everything in warm water and then run a rag through the column. What could this be on the rag , is it the natural patina? The column was made with new copper. I only noticed this when I cleaned one section it did not come out of both. I won't be too concerned about it unless I get the same color when I clean up after my sacrificial run.
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Sporacle
- Distiller
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Re: What's this?
" you can pick your nose and you can pick your friends; but you can't always wipe your friends off on your saddle" sage advice from Kinky Friedman
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Sailman
- Rumrunner
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Re: What's this?
ThanksSporacle wrote: ↑Sat Apr 01, 2023 12:57 pm viewtopic.php?t=54960
The image has disappeared but the thread explains it
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Renhoekk
- Swill Maker
- Posts: 236
- Joined: Fri Aug 05, 2022 3:43 am
Re: What's this?
Looks like red copper oxide. That’s the first stage of the patina that forms on copper - as time passes it gets covered by black copper oxide. You said your copper was brand new, so you probably cleaned off some of the young red patina