How to Refill an Aerosol Spray Can (Like Carb Cleaner, WD40, etc)
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Date: 2021-02-01
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Comments and reviews: 10
PanamaSticks
I have cans of paint from the 60's that still work well. The propellant hasn't leaked out because it's Freon. The government banned the manufacture of Freon (and R12 refrigerant) in the early 80's, to protect the ozone layer. They replaced the Freon with CO2, and in some cases, butane. CO2, being a much smaller molecule than Freon, leaks out of the seams of the cans, (into the atmosphere) before the contents are expelled, resulting in millions of partially filled cans of paint, hairspray, glue, and oil going to the landfills each year, where they are compacted (crushed. The oil, paint, solvent, etc. eventually reaches our aquifers where it poisons our water. R12 refrigerant was replaced with R-134, a less efficient refrigerant. So we use more gasoline to run our auto air conditioners than we would have with R-12.
Now of course many of the same scientists who foisted this on us, say CO2 and our gasoline consumption causes global warming. They contributed to the issue. The kicker is that a few years after the ban other scientists discovered that the ozone hole was a natural event, and not caused by Freon or R12.
Incidentally, putting air into paint cans, aerosol glues, etc, will cause the paint and glue to harden INSIDE the can. Otherwise companies would be putting air in cans.
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I have cans of paint from the 60's that still work well. The propellant hasn't leaked out because it's Freon. The government banned the manufacture of Freon (and R12 refrigerant) in the early 80's, to protect the ozone layer. They replaced the Freon with CO2, and in some cases, butane. CO2, being a much smaller molecule than Freon, leaks out of the seams of the cans, (into the atmosphere) before the contents are expelled, resulting in millions of partially filled cans of paint, hairspray, glue, and oil going to the landfills each year, where they are compacted (crushed. The oil, paint, solvent, etc. eventually reaches our aquifers where it poisons our water. R12 refrigerant was replaced with R-134, a less efficient refrigerant. So we use more gasoline to run our auto air conditioners than we would have with R-12.
Now of course many of the same scientists who foisted this on us, say CO2 and our gasoline consumption causes global warming. They contributed to the issue. The kicker is that a few years after the ban other scientists discovered that the ozone hole was a natural event, and not caused by Freon or R12.
Incidentally, putting air into paint cans, aerosol glues, etc, will cause the paint and glue to harden INSIDE the can. Otherwise companies would be putting air in cans.
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Roy
Using air to replace lost propellant works fine. But air is NOT the original propellant that was used in the can. Propain is a very common propellent used. There are many others. Carbon dioxide is commonly used if the can contains food stuff such as whip cream.
Using compressed air means you might have to recharge several times. But that's ok. As long as you get to use the entire contents.
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Using air to replace lost propellant works fine. But air is NOT the original propellant that was used in the can. Propain is a very common propellent used. There are many others. Carbon dioxide is commonly used if the can contains food stuff such as whip cream.
Using compressed air means you might have to recharge several times. But that's ok. As long as you get to use the entire contents.
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Alpha
Thats dangerous af. If you accidentally inject compressed air into your skin it could cause major problems. If youre gonna do this you should wear leather gloves. The valve stem method would be the better way to do this. However, if youre careful its a great way to save some money.
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Thats dangerous af. If you accidentally inject compressed air into your skin it could cause major problems. If youre gonna do this you should wear leather gloves. The valve stem method would be the better way to do this. However, if youre careful its a great way to save some money.
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Brian
I have done that many times in the past. Works very well. When I do it, I attach a very small piece of vinyl tubing to the air nozzle, then slide the tubing over the tube sticking up on the can, then press down to fill. No Mess.
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I have done that many times in the past. Works very well. When I do it, I attach a very small piece of vinyl tubing to the air nozzle, then slide the tubing over the tube sticking up on the can, then press down to fill. No Mess.
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Sal
Most of these cans have a small tube in the inside connecting the nozzle to the bottom of the can. If you turn the can upside down while filling it with air, it will not spray out any of the material in the can.
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Most of these cans have a small tube in the inside connecting the nozzle to the bottom of the can. If you turn the can upside down while filling it with air, it will not spray out any of the material in the can.
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Monkey
I drill a small hole thru a rubber eraser and use it as a converter/gasket to put both tips into. it expands to fit different tips/tubes, and holds a tight enuf seal to make no mess.
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I drill a small hole thru a rubber eraser and use it as a converter/gasket to put both tips into. it expands to fit different tips/tubes, and holds a tight enuf seal to make no mess.
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Redember
i use those can-type air duster. most of these are uses liquid refrigerant as propellant. Invert the air duster can and fill the empty bottle with LIQUID propellant. Done
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i use those can-type air duster. most of these are uses liquid refrigerant as propellant. Invert the air duster can and fill the empty bottle with LIQUID propellant. Done
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F20s
Now i am thinking to add paint or other liquids into empty spray cans; )
I have the compressor and the right gun but to have some portable solution.
Nice tip anyway!
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Now i am thinking to add paint or other liquids into empty spray cans; )
I have the compressor and the right gun but to have some portable solution.
Nice tip anyway!
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Craig
Always put on gloves when using compressed air like that, don't want any air getting in breaks in your skin, most diyers have cuts or open soars in there hands or fingers.
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Always put on gloves when using compressed air like that, don't want any air getting in breaks in your skin, most diyers have cuts or open soars in there hands or fingers.
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PhigoDakidd
I've used this a bunch Of times. Thanks Chris.
And My Air Compressor Fill Nozzle fits snugly over the spray can Nozzles, so it's an easy no mess process for Me.
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I've used this a bunch Of times. Thanks Chris.
And My Air Compressor Fill Nozzle fits snugly over the spray can Nozzles, so it's an easy no mess process for Me.
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