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Old 1st March 2020, 03:43 AM
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Bob Bob is offline
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Nothing wrong with using butane gas from a lighter refill can - it is exactly the same stuff as Protectan. I find that the cap from an old can of Protectan does not fit well, but by snipping the tip of the butane can's spigot, it is enough of a fit to make a seal when you use the cap to deliver the gas. The cap will drop off tho' once you stop pushing as it is a little too narrow to fit snuggly (at least on the Ronson butane can I have).

I did used to use argon intended for arc-welding but it is a bit of a faff to use as the canisters are rather heavy and require a regulator to get the gas out (as the gas is liquefied and hence under very high pressure). That Wine and Food Preserver can is not putting the argon under enough pressure to liquefy it so I suspect it has very little argon in it in comparison.

Just as an aside, a gas has typically around 800 times the volume of the same gas in liquefied form.
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