propane for bloxygen - SailNet Community
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post #1 of 8 Old 04-20-2013 Thread Starter
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propane for bloxygen

I read a tip where someone exhausts a little propane in the top of a partly used can of paint or varnish to displace the air.

Is supposed to prevent the material from hardening.

I've been trying it.
I have a small propane torch. The trick is to press the button enough so the propane is released but not so much as to light the torch.

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post #2 of 8 Old 04-20-2013
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Re: propane for bloxygen

Yeah, lighting the torch probably wouldn't be the best of choices.
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post #3 of 8 Old 04-20-2013
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Re: propane for bloxygen

other than almost setting your paint on fire.. how does it seem to work? I can see it in theory, displacing the oxygen prevents the upper levels of paint from hardening

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post #4 of 8 Old 04-20-2013
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Re: propane for bloxygen

Hi folks, I'm the "Bloxygen Guy" and a lifetime sailor.

Please, please don't try this 'trick.' It's dangerous because propane is a very reactive chemical (so reactive that it's flammable). Bloxygen is only about 16 cents per use. Please don't risk an explosion or the loss of expensive finish.

We use ultra pure Argon which is a totally inert component of our atmosphere. Argon is used in manufacturing, medical, and food industries extensively.

Be safe. Fair winds.

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post #5 of 8 Old 04-20-2013
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Re: propane for bloxygen

The theory sounds good...propane being heavier then air...I'll have to try it and I am sure that I have an old style torch that requires manual lighting...Thanks...

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post #6 of 8 Old 04-20-2013
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Re: propane for bloxygen

We inert gas many things at work and nitrogen does fine to displace air the only thing i use argon for is tig welding


We have done YEARS OF PHARMACEUTIC STABILITY RESEARCH in temperature/humidity controlled rooms to validate expiration dates with the FDA watching every move.

And while we do use and FDA approved gas vendor i can assure if the shelf life could be mad longer we would use the more costly gas



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post #7 of 8 Old 04-22-2013
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Re: propane for bloxygen

I've used argon off a welding tank for food and for paint, works great, but a lot of hassle unless you've got the welding setup handy all the time.

A splash of mineral spirits does the same job as the expensive gas for varnish, now that I'm varnishing regularly, I prefer the simplicity. Since I use a bit of thinner when I varnish anyways I've got it on hand.
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post #8 of 8 Old 04-22-2013
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Re: propane for bloxygen

An alternative is to take a piece of plastic cling wrap, float it on the surface of the paint/varnish or whatever that remains in your can and press the wrap against the in-side of the can above the surface of the material. If you really want to get fancy, stop by the supermarket and pick up a small piece of dry-ice. When you are done painting/varnishing or what have you, use the cling wrap trick, above followed up with a few chips of the dry ice dropped on the wrap. In a few minutes the ex-gasing of the dry ice will displace most of the air in the paint/varnish can with CO2 which is far less dangerous than your propane trick. BTDT

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