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#1
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nitrogen gas in cans
I wonder why some company doesn't begin to sell compressed
nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round |
#2
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nitrogen gas in cans
Nonny wrote:
I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? Just adding nitrogen won't make much difference. You'd have to find some way to suck out the normal-ratio air out at the same time, or there would still be plenty of oxygen in there. Hence all the vacuum-baggie food sealing machines. I find that manually deflating the zip-lock baggie as I seal it (by careful folding and pushing) helps prolong the time the food stays tolerable. Makes a big difference with cheese and such. (Alright, I confess- I live alone, so I suck the last bit of air out with my mouth, and dog down the zipper with my teeth.) No good suggestions about the paint, other than the 'store it upside down' idea. I seldom bother, but don't paint that often, and store the latex paint in a heated basement, so I have never really had any problems anyway. -- aem sends... |
#3
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nitrogen gas in cans
On Feb 23, 10:03*pm, "Nonny" wrote:
I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. *For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? snip Technically you are correct. Practically, the spray cans are pressure limited (70PSI or some such?) so the gas volume is gone in one blast. Liquid propellants are used to produce longer lasting operating pressure for spray products, various Freons, propane among others. Using crude arithmetic, a 2.5" x 6" spay can at 9 cubic inches will hold about 45 cubic inches of gas at STP given 70 PSI initially. So maybe a half dozen Ziplocks might be serviced. Not too good a return on your expenditure. Figure out a way to keep nitrogen pellets around at -200 degrees C and you could have a neat product. Joe |
#4
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nitrogen gas in cans
"aemeijers" wrote in message ... Nonny wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? Just adding nitrogen won't make much difference. You'd have to find some way to suck out the normal-ratio air out at the same time, or there would still be plenty of oxygen in there. Hence all the vacuum-baggie food sealing machines. I find that manually deflating the zip-lock baggie as I seal it (by careful folding and pushing) helps prolong the time the food stays tolerable. Makes a big difference with cheese and such. (Alright, I confess- I live alone, so I suck the last bit of air out with my mouth, and dog down the zipper with my teeth.) I do this as well. It works swell, though I use my Foodsaver as well. No good suggestions about the paint, other than the 'store it upside down' idea. I seldom bother, but don't paint that often, and store the latex paint in a heated basement, so I have never really had any problems anyway. Right now, I always invert a paint can briefly, then right it so that the paint itself forms a little seal around the inside of the lid. -- aem sends... I would envision a snorkel-like tube from the can that would be shoved to the bottom of the Zip-Lock bag. The bag would be zipped to almost closed around the snorkel, and then the nitrogen (or other inert gas) introduced. Nope- it wouldn't be 100% ever, but it would drive out most of the air with the little whoosh. The can would be like a dust-off can, but with nitrogen instead of air. BTW, this is exactly how they place the less conductive gas between the panes of a double pane window. For paint or other self-sealed containers, a swoosh of nitrogen just before slapping the lid closed would go a long way to keeping the paint from going bad or scumming over, I bet. -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round |
#5
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nitrogen gas in cans
"Joe" wrote in message ... On Feb 23, 10:03 pm, "Nonny" wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? snip Technically you are correct. Practically, the spray cans are pressure limited (70PSI or some such?) so the gas volume is gone in one blast. Liquid propellants are used to produce longer lasting operating pressure for spray products, various Freons, propane among others. Using crude arithmetic, a 2.5" x 6" spay can at 9 cubic inches will hold about 45 cubic inches of gas at STP given 70 PSI initially. So maybe a half dozen Ziplocks might be serviced. Not too good a return on your expenditure. Figure out a way to keep nitrogen pellets around at -200 degrees C and you could have a neat product. Joe Interesting. How about nitrogen in a MIG-sized bottle under high pressure, a pressure regulator, electric valve and 1/4" PEX tube run from the garage to the kitchen and shop? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round |
#6
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nitrogen gas in cans
On Feb 23, 8:41*pm, aemeijers wrote:
Nonny wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. * For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? Just adding nitrogen won't make much difference. You'd have to find some way to suck out the normal-ratio air out at the same time, or there would still be plenty of oxygen in there. Hence all the vacuum-baggie food sealing machines. I find that manually deflating the zip-lock baggie as I seal it (by careful folding and pushing) helps prolong the time the food stays tolerable. Makes a big difference with cheese and such. (Alright, I confess- I live alone, so I suck the last bit of air out with my mouth, and dog down the zipper with my teeth.) No good suggestions about the paint, other than the 'store it upside down' idea. I seldom bother, but don't paint that often, and store the latex paint in a heated basement, so I have never really had any problems anyway. -- aem sends... Thanks for the honesty.....I was wondering why I couldn't squeeze the air out by hand and had to resort to sucking the air out. cheers Bob |
#7
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nitrogen gas in cans
On Feb 23, 10:03*pm, "Nonny" wrote:
I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. *For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. *If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round Air is about 78% nitrogen, the issue is removing the oxygen so you need to pull a vacume first. They charge alot extra to inflate tires wirh nitrogen, but how do they remove the oxygen, I dont think they do at all. |
#8
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nitrogen gas in cans
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#9
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nitrogen gas in cans
On 2/24/2010 7:38 AM, ransley wrote:
On Feb 23, 10:03 pm, wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round Air is about 78% nitrogen, the issue is removing the oxygen so you need to pull a vacume first. They charge alot extra to inflate tires wirh nitrogen, but how do they remove the oxygen, I dont think they do at all. I guess it depends where you buy tires. The local evil mom & pop place doesn't charge a lot more or even more for that matter. They have a unit similar to this in the garage: http://www.ntxtools.com/network-tool...TI-NTF-60.html |
#10
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nitrogen gas in cans
On Wed, 24 Feb 2010 07:20:32 -0600, Jim Yanik wrote:
there IS(was?) a company that sells compressed nitrogen in spray cans. http://www.bloxygen.com Argon, not nitrogen. -- Art Greenberg artg at eclipse dot net |
#11
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nitrogen gas in cans
On Feb 24, 7:23*am, George wrote:
On 2/24/2010 7:38 AM, ransley wrote: On Feb 23, 10:03 pm, *wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. *For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. *If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round Air is about 78% nitrogen, the issue is removing the oxygen so you need to pull a vacume first. They charge alot extra to inflate tires wirh nitrogen, but how do they remove the oxygen, I dont think they do at all. I guess it depends where you buy tires. The local evil mom & pop place doesn't charge a lot more or even more for that matter. They have a unit similar to this in the garage: http://www.ntxtools.com/network-tool...I-NTF-60.html- Hide quoted text - - Show quoted text - By design a tire cant be fully deflated of air, air is 78% nitrogen, so what is the true percentage of nitrogen in tires filed with nitrogen, it will still contain alot of oxygen. But I guess if it works its worth it. |
#12
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nitrogen gas in cans
In article , aemeijers wrote:
Just adding nitrogen won't make much difference. You'd have to find some way to suck out the normal-ratio air out at the same time, or there would still be plenty of oxygen in there. Hence all the vacuum-baggie food sealing machines. I find that manually deflating the zip-lock baggie as I seal it (by careful folding and pushing) helps prolong the time the food stays tolerable. Makes a big difference with cheese and such. (Alright, I confess- I live alone, so I suck the last bit of air out with my mouth, and dog down the zipper with my teeth.) Works even better if you use a soda straw. |
#13
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nitrogen gas in cans
On Feb 24, 9:08*am, ransley wrote:
On Feb 24, 7:23*am, George wrote: On 2/24/2010 7:38 AM, ransley wrote: On Feb 23, 10:03 pm, *wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. *For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. *If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round Air is about 78% nitrogen, the issue is removing the oxygen so you need to pull a vacume first. They charge alot extra to inflate tires wirh nitrogen, but how do they remove the oxygen, I dont think they do at all. I guess it depends where you buy tires. The local evil mom & pop place doesn't charge a lot more or even more for that matter. They have a unit similar to this in the garage: http://www.ntxtools.com/network-tool...F-60.html-Hide quoted text - - Show quoted text - By design a tire cant be fully deflated of air, air is 78% nitrogen, so what is the true percentage of nitrogen in tires filed with nitrogen, it will still contain alot of oxygen. But I guess if it works its worth it.- Hide quoted text - - Show quoted text - And I'd say it's just another scam to get more money out of unwitting consumers. Nitrogen would seem to have no compelling advantage. Supposedly it means tires are less susceptable to pressure change with ambient temp change, nitrogen will leak out slower, etc. If you have enough sense to check your tire pressure regularly, none of that matters. And if you don't, then I'd say nitrogen is a poor substitute. |
#15
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nitrogen gas in cans
George wrote: On 2/24/2010 10:01 AM, wrote: On Feb 24, 9:08 am, wrote: On Feb 24, 7:23 am, wrote: On 2/24/2010 7:38 AM, ransley wrote: On Feb 23, 10:03 pm, wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round Air is about 78% nitrogen, the issue is removing the oxygen so you need to pull a vacume first. They charge alot extra to inflate tires wirh nitrogen, but how do they remove the oxygen, I dont think they do at all. I guess it depends where you buy tires. The local evil mom& pop place doesn't charge a lot more or even more for that matter. They have a unit similar to this in the garage: http://www.ntxtools.com/network-tool...F-60.html-Hide quoted text - - Show quoted text - By design a tire cant be fully deflated of air, air is 78% nitrogen, so what is the true percentage of nitrogen in tires filed with nitrogen, it will still contain alot of oxygen. But I guess if it works its worth it.- Hide quoted text - - Show quoted text - And I'd say it's just another scam to get more money out of unwitting consumers. Nitrogen would seem to have no compelling advantage. Supposedly it means tires are less susceptable to pressure change with ambient temp change, nitrogen will leak out slower, etc. If you have enough sense to check your tire pressure regularly, none of that matters. And if you don't, then I'd say nitrogen is a poor substitute. Works for me. One of our vehicles has always had issues with slow tire leaks. The wheels are clean with no rust and aren't bent. I had four new tires tires installed at the local evil mom & pop tire place last year and they used nitrogen this time (at no additional charge) and now the slow leaks are gone. New tires and more careful mounting eliminated the leaks, not nitrogen. Nitrogen isn't really a scam per-se, more of a distortion. Folks found that racing teams were using nitrogen for it's advantages when used in low volume race tires running *hot* at a couple hundred miles per hour and figured if the racers used it they should too. The reality is it is of no benefit for normal vehicles with normal tires operated at normal highway speeds. |
#16
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nitrogen gas in cans
"Doug Miller" wrote in message ... In article , aemeijers wrote: Just adding nitrogen won't make much difference. You'd have to find some way to suck out the normal-ratio air out at the same time, or there would still be plenty of oxygen in there. Hence all the vacuum-baggie food sealing machines. I find that manually deflating the zip-lock baggie as I seal it (by careful folding and pushing) helps prolong the time the food stays tolerable. Makes a big difference with cheese and such. (Alright, I confess- I live alone, so I suck the last bit of air out with my mouth, and dog down the zipper with my teeth.) Works even better if you use a soda straw. DO NOT use a soda straw with paint!!!!!!!!!!!! That's how I fell in love with Sherwin Williams latex enamel. Grin Doug, I'm replying to several posts via this reply to yours. When I use a zip-lock bag, I do like most have suggested and zip it almost closed. I then squeeze the bag to deflate it or use the lip/mouth technique to get as much air out as possible. While nitrogen is about 78% of air, what's important in a paint can, baggie or Tupperware container is the ABSOLUTE amount of oxygen. That's why deflating the zip lock bag helps to preserve foods, since while the 22% (yeah, I know that oxygen is slightly less because of other gasses, but this is Usenet and you're permitted to round off) oxygen to 78% nitrogen ratio stays the same, there are physically fewer oxygen molecules inside the baggie, paint can etc. to cause oxidation. If I were to install something in the kitchen and shop to spritz nitrogen gas into a container before sealing it, I'd still probably deflate the baggie before inserting the tube to reduce the number of oxygen molecules inside the bag. Then, after inflating the bag with nitrogen, I'd then deflate it again before sealing it. That would get out a bunch more. For paint in a can or (now) plastic container, I'd just close the lid as far as possible over the tube, spritz it a bit to purge as much air as I reasonably could, the slap the lid closed as I withdrew the tube. The number of oxygen molecules inside the can is what causes the paint to scum over, as seen with the difference between an almost full can lasting a long while vs. an almost-empty can scumming over in a month or less. IMHO, a nitrogen purge of an almost-empty can would dramatically add to its life on the shelf. My current though revolves around using PEX-type tubing and nitrogen from a cylinder regulated to about 10psi. To dispense it, I'd use a gun like this, or something similar. http://www.northerntool.com/webapp/w...70_36641_36641 The cylinder would be in a closet or my garage, with the tubing run inside the cabinets to the refrigerator, where about 4' of tubing would just hang behind the refrigerator, with the gun in a "holster" on the side. -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. If sold to voters, though, the car seats are modified to just blow smoke up the voter’s rump year-round |
#17
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nitrogen gas in cans
On Feb 24, 9:01*am, wrote:
On Feb 24, 9:08*am, ransley wrote: On Feb 24, 7:23*am, George wrote: On 2/24/2010 7:38 AM, ransley wrote: On Feb 23, 10:03 pm, *wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. *For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. *If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round Air is about 78% nitrogen, the issue is removing the oxygen so you need to pull a vacume first. They charge alot extra to inflate tires wirh nitrogen, but how do they remove the oxygen, I dont think they do at all. I guess it depends where you buy tires. The local evil mom & pop place doesn't charge a lot more or even more for that matter. They have a unit similar to this in the garage: http://www.ntxtools.com/network-tool...tml-Hidequoted text - - Show quoted text - By design a tire cant be fully deflated of air, air is 78% nitrogen, so what is the true percentage of nitrogen in tires filed with nitrogen, it will still contain alot of oxygen. But I guess if it works its worth it.- Hide quoted text - - Show quoted text - And I'd say it's just another scam to get more money out of unwitting consumers. * Nitrogen would seem to have no compelling advantage. Supposedly it means tires are less susceptable to pressure change with ambient temp change, nitrogen will leak out slower, etc. * If you have enough sense to check your tire pressure regularly, none of that matters. * And if you don't, then I'd say nitrogen is a poor substitute.- Hide quoted text - - Show quoted text - Here its about 60$ to fill all 4, I passed on the offer. |
#18
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nitrogen gas in cans
On Feb 24, 10:06*am, George wrote:
On 2/24/2010 10:01 AM, wrote: On Feb 24, 9:08 am, *wrote: On Feb 24, 7:23 am, *wrote: On 2/24/2010 7:38 AM, ransley wrote: On Feb 23, 10:03 pm, * *wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. *For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. *If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round Air is about 78% nitrogen, the issue is removing the oxygen so you need to pull a vacume first. They charge alot extra to inflate tires wirh nitrogen, but how do they remove the oxygen, I dont think they do at all. I guess it depends where you buy tires. The local evil mom& *pop place doesn't charge a lot more or even more for that matter. They have a unit similar to this in the garage: http://www.ntxtools.com/network-tool...tml-Hidequoted text - - Show quoted text - By design a tire cant be fully deflated of air, air is 78% nitrogen, so what is the true percentage of nitrogen in tires filed with nitrogen, it will still contain alot of oxygen. But I guess if it works its worth it.- Hide quoted text - - Show quoted text - And I'd say it's just another scam to get more money out of unwitting consumers. * Nitrogen would seem to have no compelling advantage. Supposedly it means tires are less susceptable to pressure change with ambient temp change, nitrogen will leak out slower, etc. * If you have enough sense to check your tire pressure regularly, none of that matters. * And if you don't, then I'd say nitrogen is a poor substitute. Works for me. One of our vehicles has always had issues with slow tire leaks. The wheels are clean with no rust and aren't bent. I had four new tires tires installed at the local evil mom & pop tire place last year and they used nitrogen this time (at no additional charge) and now the slow leaks are gone.- Hide quoted text - - Show quoted text - The new tires fixed it not the nitrogen. Ive read tire test reviews just on leak amounts, Michelin scored best for holding air. I think even CR published a test on tires that hold pressure. |
#19
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nitrogen gas in cans
On Feb 24, 12:33*pm, "Nonny" wrote:
"Doug Miller" wrote in message ... In article , aemeijers wrote: Just adding nitrogen won't make much difference. You'd have to find some way to suck out the normal-ratio air out at the same time, or there would still be plenty of oxygen in there. Hence all the vacuum-baggie food sealing machines. I find that manually deflating the zip-lock baggie as I seal it (by careful folding and pushing) helps prolong the time the food stays tolerable. Makes a big difference with cheese and such. (Alright, I confess- I live alone, so I suck the last bit of air out with my mouth, and dog down the zipper with my teeth.) Works even better if you use a soda straw. DO NOT use a soda straw with paint!!!!!!!!!!!! *That's how I fell in love with Sherwin Williams latex enamel. Grin Doug, I'm replying to several posts via this reply to yours. *When I use a zip-lock bag, I do like most have suggested and zip it almost closed. *I then squeeze the bag to deflate it or use the lip/mouth technique to get as much air out as possible. While nitrogen is about 78% of air, what's important in a paint can, baggie or Tupperware container is the ABSOLUTE amount of oxygen. *That's why deflating the zip lock bag helps to preserve foods, since while the 22% (yeah, I know that oxygen is slightly less because of other gasses, but this is Usenet and you're permitted to round off) oxygen to 78% nitrogen ratio stays the same, there are physically fewer oxygen molecules inside the baggie, paint can etc. to cause oxidation. If I were to install something in the kitchen and shop to spritz nitrogen gas into a container before sealing it, I'd still probably deflate the baggie before inserting the tube to reduce the number of oxygen molecules inside the bag. *Then, after inflating the bag with nitrogen, I'd then deflate it again before sealing it. *That would get out a bunch more. For paint in a can or (now) plastic container, I'd just close the lid as far as possible over the tube, spritz it a bit to purge as much air as I reasonably could, the slap the lid closed as I withdrew the tube. *The number of oxygen molecules inside the can is what causes the paint to scum over, as seen with the difference between an almost full can lasting a long while vs. an almost-empty can scumming over in a month or less. *IMHO, a nitrogen purge of an almost-empty can would dramatically add to its life on the shelf. My current though revolves around using PEX-type tubing and nitrogen from a cylinder regulated to about 10psi. *To dispense it, I'd use a gun like this, or something similar.http://www.northerntool..com/webapp/...roduct_6970_36... The cylinder would be in a closet or my garage, with the tubing run inside the cabinets to the refrigerator, where about 4' of tubing would just hang behind the refrigerator, with the gun in a "holster" on the side. -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. *If sold to voters, though, the car seats are modified to just blow smoke up the voter�s rump year-round- Hide quoted text - - Show quoted text - Better is get a small paint can-jar for leftovers, crapped up lids and cans can make a seal impossible, cans rust, I use jars with good sealing tops. Did you ever pick up an old can of paint and have the paint fall out because the can rusted, I have. |
#20
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nitrogen gas in cans
George wrote:
On 2/24/2010 10:01 AM, wrote: On Feb 24, 9:08 am, wrote: On Feb 24, 7:23 am, wrote: On 2/24/2010 7:38 AM, ransley wrote: On Feb 23, 10:03 pm, wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round Air is about 78% nitrogen, the issue is removing the oxygen so you need to pull a vacume first. They charge alot extra to inflate tires wirh nitrogen, but how do they remove the oxygen, I dont think they do at all. I guess it depends where you buy tires. The local evil mom& pop place doesn't charge a lot more or even more for that matter. They have a unit similar to this in the garage: http://www.ntxtools.com/network-tool...F-60.html-Hide quoted text - - Show quoted text - By design a tire cant be fully deflated of air, air is 78% nitrogen, so what is the true percentage of nitrogen in tires filed with nitrogen, it will still contain alot of oxygen. But I guess if it works its worth it.- Hide quoted text - - Show quoted text - And I'd say it's just another scam to get more money out of unwitting consumers. Nitrogen would seem to have no compelling advantage. Supposedly it means tires are less susceptable to pressure change with ambient temp change, nitrogen will leak out slower, etc. If you have enough sense to check your tire pressure regularly, none of that matters. And if you don't, then I'd say nitrogen is a poor substitute. Works for me. One of our vehicles has always had issues with slow tire leaks. The wheels are clean with no rust and aren't bent. I had four new tires tires installed at the local evil mom & pop tire place last year and they used nitrogen this time (at no additional charge) and now the slow leaks are gone. Aluminum rims, or steel? Every car I have ever had with aluminum rims had problems with slow leaks during cold weather, until I had tire guy paint the rims with some magic goop as he put the tires on. I suspect that is what solved your problem as well- their installer just did it correctly without prompting. Never had the same problem with steel rims. I'd never pay extra for aluminum rims, but since I buy used cars only, I don't get a choice. -- aem sends... |
#21
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nitrogen gas in cans
"Nonny" wrote in message ... If I were to install something in the kitchen and shop to spritz nitrogen gas into a container before sealing it, I'd still probably deflate the baggie before inserting the tube to reduce the number of oxygen molecules inside the bag. Then, after inflating the bag with nitrogen, I'd then deflate it again before sealing it. That would get out a bunch more. For paint in a can or (now) plastic container, I'd just close the lid as far as possible over the tube, spritz it a bit to purge as much air as I reasonably could, the slap the lid closed as I withdrew the tube. The number of oxygen molecules inside the can is what causes the paint to scum over, as seen with the difference between an almost full can lasting a long while vs. an almost-empty can scumming over in a month or less. IMHO, a nitrogen purge of an almost-empty can would dramatically add to its life on the shelf. My current though revolves around using PEX-type tubing and nitrogen from a cylinder regulated to about 10psi. To dispense it, I'd use a gun like this, or something similar. http://www.northerntool.com/webapp/w...70_36641_36641 The cylinder would be in a closet or my garage, with the tubing run inside the cabinets to the refrigerator, where about 4' of tubing would just hang behind the refrigerator, with the gun in a "holster" on the side. Well, I've taken the next step and should be playing with Nitrogen or Argon gas shortly. I went online to eBay and bought a 40 cf 3000 psi cylinder, and separately, a pressure regulator with barbed fitting for tubing. I am going to HF and getting an air blow gun like I already have and use in the shop for compressed air. It has a 1/4" NPT inlet, so I went online and found a metal adapter to go from 1/4" NPT to 3/8" ID barbed. I'll get the poly tubing when I get the cylinder, fill it and start hooking things up. It should be fun. I've not decided whether to fill first with Argon or Nitrogen. Argon has some characteristics I like better than Nitrogen for paint cans, but the Nitrogen would surely be cheaper and would work fine for foods and almost as well for paint. I'll post more as things develop. -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. If sold to voters, though, the car seats are modified to just blow smoke up the voter’s rump year-round |
#22
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nitrogen gas in cans
On Feb 24, 7:44*pm, "Nonny" wrote:
"Nonny" wrote in message ... If I were to install something in the kitchen and shop to spritz nitrogen gas into a container before sealing it, I'd still probably deflate the baggie before inserting the tube to reduce the number of oxygen molecules inside the bag. *Then, after inflating the bag with nitrogen, I'd then deflate it again before sealing it. *That would get out a bunch more. For paint in a can or (now) plastic container, I'd just close the lid as far as possible over the tube, spritz it a bit to purge as much air as I reasonably could, the slap the lid closed as I withdrew the tube. *The number of oxygen molecules inside the can is what causes the paint to scum over, as seen with the difference between an almost full can lasting a long while vs. an almost-empty can scumming over in a month or less. *IMHO, a nitrogen purge of an almost-empty can would dramatically add to its life on the shelf. My current though revolves around using PEX-type tubing and nitrogen from a cylinder regulated to about 10psi. *To dispense it, I'd use a gun like this, or something similar. http://www.northerntool.com/webapp/w...roduct_6970_36... The cylinder would be in a closet or my garage, with the tubing run inside the cabinets to the refrigerator, where about 4' of tubing would just hang behind the refrigerator, with the gun in a "holster" on the side. Well, I've taken the next step and should be playing with Nitrogen or Argon gas shortly. *I went online to eBay and bought a 40 cf 3000 psi cylinder, and separately, a pressure regulator with barbed fitting for tubing. *I am going to HF and getting an air blow gun like I already have and use in the shop for compressed air. *It has a 1/4" NPT inlet, so I went online and found a metal adapter to go from 1/4" NPT to 3/8" ID barbed. *I'll get the poly tubing when I get the cylinder, fill it and start hooking things up. *It should be fun. I've not decided whether to fill first with Argon or Nitrogen. Argon has some characteristics I like better than Nitrogen for paint cans, but the Nitrogen would surely be cheaper and would work fine for foods and almost as well for paint. I'll post more as things develop. -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. *If sold to voters, though, the car seats are modified to just blow smoke up the voter s rump year-round Since the problem with paint is not oxidation or moisture. I dont think it would help much. With food yes it would and does. Potato chip bags are filled with nitrogen to blow up the bags to keep the chips from getting crushed and to keep them fresh. Jimmie |
#23
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nitrogen gas in cans
On 2/24/2010 7:09 PM, aemeijers wrote:
George wrote: On 2/24/2010 10:01 AM, wrote: On Feb 24, 9:08 am, wrote: On Feb 24, 7:23 am, wrote: On 2/24/2010 7:38 AM, ransley wrote: On Feb 23, 10:03 pm, wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round Air is about 78% nitrogen, the issue is removing the oxygen so you need to pull a vacume first. They charge alot extra to inflate tires wirh nitrogen, but how do they remove the oxygen, I dont think they do at all. I guess it depends where you buy tires. The local evil mom& pop place doesn't charge a lot more or even more for that matter. They have a unit similar to this in the garage: http://www.ntxtools.com/network-tool...F-60.html-Hide quoted text - - Show quoted text - By design a tire cant be fully deflated of air, air is 78% nitrogen, so what is the true percentage of nitrogen in tires filed with nitrogen, it will still contain alot of oxygen. But I guess if it works its worth it.- Hide quoted text - - Show quoted text - And I'd say it's just another scam to get more money out of unwitting consumers. Nitrogen would seem to have no compelling advantage. Supposedly it means tires are less susceptable to pressure change with ambient temp change, nitrogen will leak out slower, etc. If you have enough sense to check your tire pressure regularly, none of that matters. And if you don't, then I'd say nitrogen is a poor substitute. Works for me. One of our vehicles has always had issues with slow tire leaks. The wheels are clean with no rust and aren't bent. I had four new tires tires installed at the local evil mom & pop tire place last year and they used nitrogen this time (at no additional charge) and now the slow leaks are gone. Aluminum rims, or steel? Every car I have ever had with aluminum rims had problems with slow leaks during cold weather, until I had tire guy paint the rims with some magic goop as he put the tires on. I suspect that is what solved your problem as well- their installer just did it correctly without prompting. Never had the same problem with steel rims. I'd never pay extra for aluminum rims, but since I buy used cars only, I don't get a choice. -- aem sends... They are steel. I choose steel to try to prevent issues such as the slow leaks. The correct way is to mount a tire without magic goop. I saw them mount the tires and no "magic goop" was used. |
#24
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nitrogen gas in cans
On Feb 24, 6:44*pm, "Nonny" wrote:
"Nonny" wrote in message ... If I were to install something in the kitchen and shop to spritz nitrogen gas into a container before sealing it, I'd still probably deflate the baggie before inserting the tube to reduce the number of oxygen molecules inside the bag. *Then, after inflating the bag with nitrogen, I'd then deflate it again before sealing it. *That would get out a bunch more. For paint in a can or (now) plastic container, I'd just close the lid as far as possible over the tube, spritz it a bit to purge as much air as I reasonably could, the slap the lid closed as I withdrew the tube. *The number of oxygen molecules inside the can is what causes the paint to scum over, as seen with the difference between an almost full can lasting a long while vs. an almost-empty can scumming over in a month or less. *IMHO, a nitrogen purge of an almost-empty can would dramatically add to its life on the shelf. My current though revolves around using PEX-type tubing and nitrogen from a cylinder regulated to about 10psi. *To dispense it, I'd use a gun like this, or something similar. http://www.northerntool.com/webapp/w...roduct_6970_36... The cylinder would be in a closet or my garage, with the tubing run inside the cabinets to the refrigerator, where about 4' of tubing would just hang behind the refrigerator, with the gun in a "holster" on the side. Well, I've taken the next step and should be playing with Nitrogen or Argon gas shortly. *I went online to eBay and bought a 40 cf 3000 psi cylinder, and separately, a pressure regulator with barbed fitting for tubing. *I am going to HF and getting an air blow gun like I already have and use in the shop for compressed air. *It has a 1/4" NPT inlet, so I went online and found a metal adapter to go from 1/4" NPT to 3/8" ID barbed. *I'll get the poly tubing when I get the cylinder, fill it and start hooking things up. *It should be fun. I've not decided whether to fill first with Argon or Nitrogen. Argon has some characteristics I like better than Nitrogen for paint cans, but the Nitrogen would surely be cheaper and would work fine for foods and almost as well for paint. I'll post more as things develop. -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. *If sold to voters, though, the car seats are modified to just blow smoke up the voter’s rump year-round- Hide quoted text - - Show quoted text - Ive been painting 30+ years and have 30 yr old paint thats fine, Transfering the paint to a smaller container so its full to the top works, you leave a half full can of paint and the lid had been used and isnt perfect, you are just hoping its sealed, have you ever seen a can rust through, I have, use plastic unless its stored in very low humidity my basement is never low enough. |
#25
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nitrogen gas in cans
On Feb 24, 8:46*pm, JIMMIE wrote:
On Feb 24, 7:44*pm, "Nonny" wrote: "Nonny" wrote in message ... If I were to install something in the kitchen and shop to spritz nitrogen gas into a container before sealing it, I'd still probably deflate the baggie before inserting the tube to reduce the number of oxygen molecules inside the bag. *Then, after inflating the bag with nitrogen, I'd then deflate it again before sealing it. *That would get out a bunch more. For paint in a can or (now) plastic container, I'd just close the lid as far as possible over the tube, spritz it a bit to purge as much air as I reasonably could, the slap the lid closed as I withdrew the tube. *The number of oxygen molecules inside the can is what causes the paint to scum over, as seen with the difference between an almost full can lasting a long while vs. an almost-empty can scumming over in a month or less. *IMHO, a nitrogen purge of an almost-empty can would dramatically add to its life on the shelf. My current though revolves around using PEX-type tubing and nitrogen from a cylinder regulated to about 10psi. *To dispense it, I'd use a gun like this, or something similar. http://www.northerntool.com/webapp/w...roduct_6970_36.... The cylinder would be in a closet or my garage, with the tubing run inside the cabinets to the refrigerator, where about 4' of tubing would just hang behind the refrigerator, with the gun in a "holster" on the side. Well, I've taken the next step and should be playing with Nitrogen or Argon gas shortly. *I went online to eBay and bought a 40 cf 3000 psi cylinder, and separately, a pressure regulator with barbed fitting for tubing. *I am going to HF and getting an air blow gun like I already have and use in the shop for compressed air. *It has a 1/4" NPT inlet, so I went online and found a metal adapter to go from 1/4" NPT to 3/8" ID barbed. *I'll get the poly tubing when I get the cylinder, fill it and start hooking things up. *It should be fun. I've not decided whether to fill first with Argon or Nitrogen. Argon has some characteristics I like better than Nitrogen for paint cans, but the Nitrogen would surely be cheaper and would work fine for foods and almost as well for paint. I'll post more as things develop. -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. *If sold to voters, though, the car seats are modified to just blow smoke up the voter s rump year-round Since the problem with paint is not oxidation or moisture. I dont think it would help much. With food yes it would and does. Potato chip bags are filled with nitrogen to blow up the bags to keep the chips from getting crushed and to keep them fresh. Jimmie Ooops, I was talking about water based paints of course. Jimmie |
#26
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nitrogen gas in cans
"ransley" wrote in message ... On Feb 24, 6:44 pm, "Nonny" wrote: "Nonny" wrote in message ... If I were to install something in the kitchen and shop to spritz nitrogen gas into a container before sealing it, I'd still probably deflate the baggie before inserting the tube to reduce the number of oxygen molecules inside the bag. Then, after inflating the bag with nitrogen, I'd then deflate it again before sealing it. That would get out a bunch more. For paint in a can or (now) plastic container, I'd just close the lid as far as possible over the tube, spritz it a bit to purge as much air as I reasonably could, the slap the lid closed as I withdrew the tube. The number of oxygen molecules inside the can is what causes the paint to scum over, as seen with the difference between an almost full can lasting a long while vs. an almost-empty can scumming over in a month or less. IMHO, a nitrogen purge of an almost-empty can would dramatically add to its life on the shelf. My current though revolves around using PEX-type tubing and nitrogen from a cylinder regulated to about 10psi. To dispense it, I'd use a gun like this, or something similar. http://www.northerntool.com/webapp/w...roduct_6970_36... The cylinder would be in a closet or my garage, with the tubing run inside the cabinets to the refrigerator, where about 4' of tubing would just hang behind the refrigerator, with the gun in a "holster" on the side. Well, I've taken the next step and should be playing with Nitrogen or Argon gas shortly. I went online to eBay and bought a 40 cf 3000 psi cylinder, and separately, a pressure regulator with barbed fitting for tubing. I am going to HF and getting an air blow gun like I already have and use in the shop for compressed air. It has a 1/4" NPT inlet, so I went online and found a metal adapter to go from 1/4" NPT to 3/8" ID barbed. I'll get the poly tubing when I get the cylinder, fill it and start hooking things up. It should be fun. I've not decided whether to fill first with Argon or Nitrogen. Argon has some characteristics I like better than Nitrogen for paint cans, but the Nitrogen would surely be cheaper and would work fine for foods and almost as well for paint. I'll post more as things develop. -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. If sold to voters, though, the car seats are modified to just blow smoke up the voter’s rump year-round- Hide quoted text - - Show quoted text - Ive been painting 30+ years and have 30 yr old paint thats fine, Transfering the paint to a smaller container so its full to the top works, you leave a half full can of paint and the lid had been used and isnt perfect, you are just hoping its sealed, have you ever seen a can rust through, I have, use plastic unless its stored in very low humidity my basement is never low enough. I sure wish I had this rig when using Homer Formby's. You can squeeze the bottle until the liquid reaches the top, then slap on the lid, but when it's really low, that doesn't work. All I could do was open another bottle, pour some into the very low bottle, then squeeze both. -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. If sold to voters, though, the car seats are modified to just blow smoke up the voter’s rump year-round |
#27
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nitrogen gas in cans
On Feb 24, 11:06*am, George wrote:
On 2/24/2010 10:01 AM, wrote: On Feb 24, 9:08 am, *wrote: On Feb 24, 7:23 am, *wrote: On 2/24/2010 7:38 AM, ransley wrote: On Feb 23, 10:03 pm, * *wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. *For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. *If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round Air is about 78% nitrogen, the issue is removing the oxygen so you need to pull a vacume first. They charge alot extra to inflate tires wirh nitrogen, but how do they remove the oxygen, I dont think they do at all. I guess it depends where you buy tires. The local evil mom& *pop place doesn't charge a lot more or even more for that matter. They have a unit similar to this in the garage: http://www.ntxtools.com/network-tool...tml-Hidequoted text - - Show quoted text - By design a tire cant be fully deflated of air, air is 78% nitrogen, so what is the true percentage of nitrogen in tires filed with nitrogen, it will still contain alot of oxygen. But I guess if it works its worth it.- Hide quoted text - - Show quoted text - And I'd say it's just another scam to get more money out of unwitting consumers. * Nitrogen would seem to have no compelling advantage. Supposedly it means tires are less susceptable to pressure change with ambient temp change, nitrogen will leak out slower, etc. * If you have enough sense to check your tire pressure regularly, none of that matters. * And if you don't, then I'd say nitrogen is a poor substitute. Works for me. One of our vehicles has always had issues with slow tire leaks. The wheels are clean with no rust and aren't bent. I had four new tires tires installed at the local evil mom & pop tire place last year and they used nitrogen this time (at no additional charge) and now the slow leaks are gone. Dont guess it could be because of the new tires, valve stems and cleaning the rims? Jimmie |
#28
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nitrogen gas in cans
On 2/25/2010 12:07 PM, JIMMIE wrote:
On Feb 24, 11:06 am, wrote: On 2/24/2010 10:01 AM, wrote: On Feb 24, 9:08 am, wrote: On Feb 24, 7:23 am, wrote: On 2/24/2010 7:38 AM, ransley wrote: On Feb 23, 10:03 pm, wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round Air is about 78% nitrogen, the issue is removing the oxygen so you need to pull a vacume first. They charge alot extra to inflate tires wirh nitrogen, but how do they remove the oxygen, I dont think they do at all. I guess it depends where you buy tires. The local evil mom& pop place doesn't charge a lot more or even more for that matter. They have a unit similar to this in the garage: http://www.ntxtools.com/network-tool...tml-Hidequoted text - - Show quoted text - By design a tire cant be fully deflated of air, air is 78% nitrogen, so what is the true percentage of nitrogen in tires filed with nitrogen, it will still contain alot of oxygen. But I guess if it works its worth it.- Hide quoted text - - Show quoted text - And I'd say it's just another scam to get more money out of unwitting consumers. Nitrogen would seem to have no compelling advantage. Supposedly it means tires are less susceptable to pressure change with ambient temp change, nitrogen will leak out slower, etc. If you have enough sense to check your tire pressure regularly, none of that matters. And if you don't, then I'd say nitrogen is a poor substitute. Works for me. One of our vehicles has always had issues with slow tire leaks. The wheels are clean with no rust and aren't bent. I had four new tires tires installed at the local evil mom& pop tire place last year and they used nitrogen this time (at no additional charge) and now the slow leaks are gone. Dont guess it could be because of the new tires, valve stems and cleaning the rims? Jimmie Possible, it isn't a scientific test. The wheels are clean and the valve stems were also replaced the last time I had new tires installed and there were still slow leaks. |
#29
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nitrogen gas in cans
George wrote:
On 2/25/2010 12:07 PM, JIMMIE wrote: On Feb 24, 11:06 am, wrote: On 2/24/2010 10:01 AM, wrote: On Feb 24, 9:08 am, wrote: On Feb 24, 7:23 am, wrote: On 2/24/2010 7:38 AM, ransley wrote: On Feb 23, 10:03 pm, wrote: I wonder why some company doesn't begin to sell compressed nitrogen gas in spray cans, complete with a tube as found on many lubricant cans. For foods, a blast of Nitrogen into a zip lock baggie would help keep food from oxidizing, while a blast into a paint can before resealing might lengthen the storage life of the paint. Am I wrong in my assumptions that it would do this? -- Nonny Luxury cars now offer a great seating option for politicians. These seats blow heated air onto their backside in the winter and cooled air in the summer. If sold to voters, though, the car seats are modified to just blow smoke up the voter's rump year-round Air is about 78% nitrogen, the issue is removing the oxygen so you need to pull a vacume first. They charge alot extra to inflate tires wirh nitrogen, but how do they remove the oxygen, I dont think they do at all. I guess it depends where you buy tires. The local evil mom& pop place doesn't charge a lot more or even more for that matter. They have a unit similar to this in the garage: http://www.ntxtools.com/network-tool...tml-Hidequoted text - - Show quoted text - By design a tire cant be fully deflated of air, air is 78% nitrogen, so what is the true percentage of nitrogen in tires filed with nitrogen, it will still contain alot of oxygen. But I guess if it works its worth it.- Hide quoted text - - Show quoted text - And I'd say it's just another scam to get more money out of unwitting consumers. Nitrogen would seem to have no compelling advantage. Supposedly it means tires are less susceptable to pressure change with ambient temp change, nitrogen will leak out slower, etc. If you have enough sense to check your tire pressure regularly, none of that matters. And if you don't, then I'd say nitrogen is a poor substitute. Works for me. One of our vehicles has always had issues with slow tire leaks. The wheels are clean with no rust and aren't bent. I had four new tires tires installed at the local evil mom& pop tire place last year and they used nitrogen this time (at no additional charge) and now the slow leaks are gone. Dont guess it could be because of the new tires, valve stems and cleaning the rims? Jimmie Possible, it isn't a scientific test. The wheels are clean and the valve stems were also replaced the last time I had new tires installed and there were still slow leaks. I still say it is what they painted the rims with as they mounted the tires. Maybe not the 'magic goop' I referenced, but just a better brand of the regular clear goop, or some lube concoction they mix up on their own. I have never seen a tire mounted completely dry- that is a LOT of friction to overcome. And there are clean rims, and CLEAN rims. A half-hearted swipe with a brush, or maybe blowing compressed air around it, versus a close inspection with eyes and fingertips to find any rough areas that need another pass with the wirebrush to get the grunge off. In the old days, Mercedes used to call out for repainting the rims, in their tech manual. -- aem sends... -- aem sends... |
#30
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nitrogen gas in cans
On 2015-07-30, Clydesdale1981 wrote:
glass until it over flows..... Please explain exactly how one goes about overflowing a tire. nb |
#31
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nitrogen gas in cans
On 7/30/2015 9:44 AM, notbob wrote:
On 2015-07-30, Clydesdale1981 wrote: glass until it over flows..... Please explain exactly how one goes about overflowing a tire. nb I think he is using the overflow analogy incorrectly but his point is the same. If the tire is at one atmosphere with air, you fill it to proper pressure and the original 20% oxygen is now diluted to about 1/30 of its total content. I guess you can fill the tire, let it deflate and fill it again to purge even more. Personally, I use a secret blend of gasses in my tires. It has argon and carbon dioxide too. For $10 each I'll fill yours. |
#32
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nitrogen gas in cans
replying to notbob , Clydesdale1981 wrote:
notbob wrote: Please explain exactly how one goes about overflowing a tire. nb Well, I wasn't talking about tires. I thought this thread was about preserving food with inert gases, but since you asked. One could easily use the same process that home brewers use to clear the O2 out of the head space of a keg before carbonating their beer. In short, pressurize and depressurize in quick succession. if you double the pressure with pure NO2 (which isn't much, standard atmosphere is about 14.7psi, so only about 30 psi) then drop back to no pressure differential then fill once more you'd already be above 90% pure NO2. standard atmosphe 78% NO2 21%O2 1% Argon, CO2 many others so your tire starts at 78 parts Nitrogen. double the pressure, it's reasonable to assume you've added 100 parts nitrogen. depressurize, cutting each components presence by half. 178 parts out of 200, becomes 89 out of 100. once you pressurize it again back to tire pressure 32-45PSI you are well above 90%. you can never get to 100% this way. but if you do the math it takes 5 successions to get above 99%. Are most tire shops venting tires to attain high purity of gases in tires? Probably not. I never have promoted it's use in tires any way. But, one thing that hasn't been mentioned: Nitrogen for tires is guaranteed dry air. if you live in a humid climate and the compressor has run all day and hasn't been drained, you better believe that the air they are pumping into your tires is saturated with water. using NO2 is one way to be sure they're not introducing water into your tire and rim assembly. -- |
#33
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nitrogen gas in cans
On Thursday, July 30, 2015 at 10:02:01 AM UTC-5, Ed Pawlowski wrote:
On 7/30/2015 9:44 AM, notbob wrote: On 2015-07-30, Clydesdale1981 wrote: glass until it over flows..... Please explain exactly how one goes about overflowing a tire. nb I think he is using the overflow analogy incorrectly but his point is the same. If the tire is at one atmosphere with air, you fill it to proper pressure and the original 20% oxygen is now diluted to about 1/30 of its total content. I guess you can fill the tire, let it deflate and fill it again to purge even more. Personally, I use a secret blend of gasses in my tires. It has argon and carbon dioxide too. For $10 each I'll fill yours. Doesn't the argon make your tires heavier? I've always thought using nitrogen gas laced with mercaptan odorant would be a good thing to inflate tires with. That way, you would know immediately if you had a leak in a tire. ^_^ [8~{} Uncle Gas Monster |
#34
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nitrogen gas in cans
On 7/30/2015 12:26 PM, Uncle Monster wrote:
Personally, I use a secret blend of gasses in my tires. It has argon and carbon dioxide too. For $10 each I'll fill yours. Doesn't the argon make your tires heavier? I've always thought using nitrogen gas laced with mercaptan odorant would be a good thing to inflate tires with. That way, you would know immediately if you had a leak in a tire. ^_^ [8~{} Uncle Gas Monster Yes, the argon adds weight but it tends to stay at the bottom of the tire and gives the car better stability in turns, better traction in snow. I don't tell many people about it because if it catches on, the price of argon will skyrocket and cause shortages. I tried mercaptan, but my wife keeps asking "did you fart?" |
#35
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nitrogen gas in cans
If you have new tires before you start filling with gases other then air I
suggest to check with manufacture some gases can cause shrinking of rubber and may cause additional leaks. I used refrigerant in tire but only in emergency until I was able get to clean air. "Uncle Monster" wrote in message ... On Thursday, July 30, 2015 at 10:02:01 AM UTC-5, Ed Pawlowski wrote: On 7/30/2015 9:44 AM, notbob wrote: On 2015-07-30, Clydesdale1981 wrote: glass until it over flows..... Please explain exactly how one goes about overflowing a tire. nb I think he is using the overflow analogy incorrectly but his point is the same. If the tire is at one atmosphere with air, you fill it to proper pressure and the original 20% oxygen is now diluted to about 1/30 of its total content. I guess you can fill the tire, let it deflate and fill it again to purge even more. Personally, I use a secret blend of gasses in my tires. It has argon and carbon dioxide too. For $10 each I'll fill yours. Doesn't the argon make your tires heavier? I've always thought using nitrogen gas laced with mercaptan odorant would be a good thing to inflate tires with. That way, you would know immediately if you had a leak in a tire. ^_^ [8~{} Uncle Gas Monster |
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