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| Thread ID: 145919 | 2018-03-03 06:53:00 | Compressed Air Can Sprays are very dear | Digby (677) | Press F1 |
| Post ID | Timestamp | Content | User | ||
| 1446958 | 2018-03-03 06:53:00 | Hi I find that the cans of compressed air are very dear. They are about $18.00 now at PBTech, The Warehouse, Office Max etc etc. Two questions why is compressed air so much dearer than a can of fly spray at $5 or 6 that has stuff in it! Are there any cheaper places and are we being ripped off in NZ to places such as Australia or Singapore or Chile or the USA. |
Digby (677) | ||
| 1446959 | 2018-03-03 07:23:00 | Yes it's ridiculous, I use an airbed inflater instead or my vacuum cleaners blower. | dugimodo (138) | ||
| 1446960 | 2018-03-03 08:16:00 | You can DIY hack it with Tyre valves. Vid here (www.youtube.com) - attaching a valve in pre-drilled hole, then pumping in air. Or this vid (www.youtube.com)placing valve where the nozzle sits - then inject air, and liquid if need be. I bought 3 cans of butane gas for 5 dollars at K-Mart. Cheap. Dunno why free aerosol canned air is costly... |
kahawai chaser (3545) | ||
| 1446961 | 2018-03-03 11:45:00 | Any empty aerosol can you can add air to, normally to get the last drop of liquid out of a can I add air to it, but even an empty can would be able to store air. I'm not sure what pressure aerosol cans can withstand but the bottom of the can will pop out if you pressurise it too much. I normally aim for 60psi but if you buy a sureshot canister, you can get 200psi, although my air compressor is limited to 100psi so thats my max pressure. NZ has a very high markup, a lot of places are above 300% but its quite the norm when they go through middlemen rather than import directly. |
Kame (312) | ||
| 1446962 | 2018-03-03 18:46:00 | A vacuum cleaner on reverse does the same thing. me, I just use a clean paintbrush to clean out my PC parts...the bristles get into those crevices and it works well. Still have the same brush from the 1980's.... |
piroska (17583) | ||
| 1446963 | 2018-03-03 21:57:00 | Vacuum cleaner = ESD | KarameaDave (15222) | ||
| 1446964 | 2018-03-03 22:10:00 | Vacuum cleaner = ESD Depends how close you get and you could always rest the end against the metal case to bleed off any static if you wanted, or put an anti static wrist band on your vacuum :) Personally I only use the Vacuum for cleaning out out cases and heatsinks etc where it's not an issue. A smaller jet of air is better for cleaning some things. |
dugimodo (138) | ||
| 1446965 | 2018-03-03 22:29:00 | I would expect those air cans to be filled from an oil free compressor, well filtered, and be perfectly dry. Your common or garden compressor will also be putting oil and water vapour into the air if you don't have have good filters/separators. This was always a problem in the early days of gas bearing development, trying to get really clean dry air, before oil free compressors were more commonly available. However, the price really is a rip off, and they're not essential at all. |
Terry Porritt (14) | ||
| 1446966 | 2018-03-03 23:47:00 | I would expect those air cans to be filled from an oil free compressor, well filtered, and be perfectly dry. Your common or garden compressor will also be putting oil and water vapour into the air if you don't have have good filters/separators. However, the price really is a rip off, and they're not essential at all. Yes I dont really like the idea of using a common or garden vacuum ( mine does not blow) and I just wish the cans were about a third of the price. |
Digby (677) | ||
| 1446967 | 2018-03-03 23:52:00 | Just as I thought www.walmart.com $7 US for one can, or less than 6$ if you buy 3. If you scroll down they also have a 16 pack So we are paying twice as much in rough terms. |
Digby (677) | ||
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