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Saving Tung Oil

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DC:
I was just transferring the dregs of my Tung oil to a squeeze bottle and noticed that a fair amount had hardened it the container, same a paint skinning over. Since this is caused by increasing exposure to oxygen as the can gets emptied I was thinking it would be nice if there was a way to isolate the oil from the oxygen. While I was thinking about this I was staring at my oxy/acetylene torch. What if a person was to put a squirt of acetylene in the bottle. It's heavier than air so it would settle to the surface of the oil and isolate it from the oxygen. I think it would work as long as the acetylene didn't react with the oil. Is there a chemist out there? Has anyone tried it? 

Azmdted:
I can't speak for tung oil, but in wine making many folks add nitrogen to prevent oxidation of the wine during various stages.  I think nitrogen is an inert gas.  On my Tru oil, I buy the smaller bottles, keep the foil safety flap attached, punch a small hole for a drip to come out and then store the bottle with lid on upside down.  That minimizes air contact during use and storage.

DC:
I went surfing. There is a product called Bloxygen. It's just Argon in a spray can. Sounds safer and I have a bottle of Argon in the shop. I don't have a regulator for it. Wonder what my MIG welder gas is?

PS Blueshield is 70% Argon and 25% CO2. I'll try that.

mmattockx:

--- Quote from: DC on September 17, 2020, 12:50:37 pm ---While I was thinking about this I was staring at my oxy/acetylene torch. What if a person was to put a squirt of acetylene in the bottle.

--- End quote ---

Acetylene is ridiculously dangerous and reactive. I wouldn't do anything with it that doesn't involve running it through the oxy/acetylene torch system as intended.



--- Quote from: DC on September 17, 2020, 01:11:23 pm ---PS Blueshield is 70% Argon and 25% CO2. I'll try that.

--- End quote ---

That is a vastly safer, more suitable option.


Mark

dylanholderman:
agreed use nitrogen or the argon shielding gas you have. they're both inert so either should work, heck nitrogen is the gas they use in chip bags to keep them from going stale.

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