Sources of CO2

Any ideas for sources of CO2 for MIG welding? I don't want to hire
cylinders, and someone suggested that old fire extinguishers are a good bet,
any other ideas appreciated.
Tks
John Allen
New Zealand
Reply to
John Allen
Loading thread data ...
Sometimes it's much more expensive to find that cheaper method. The only reasonable alternative to compressed gas cylinders is using dry ice, but you may have difficulty controlling the flow rate of the gas.
Just go buy a cylinder. CO2 is VERY useful - not just for welding. You can make sand molds with sodium silicate and all types of other crap. It's also great for putting out fires, cryogenics, gas powered pumpkin canon, bla bla bla.
Reply to
Persona NonGrata
One big Bla Bla is keeping beer fresh in a keg.
Reply to
wayne
I wouldn't try that. There are a lot of other gases and material in exhaust than CO2, most of them toxic; unburned hydrocarbons, nitrogen oxides, and carbon monoxide. Lane
Reply to
Lane
I get mine from my local Pepsi distributor. They simply charge 20 for a full 20 lb tank and when you bring it back empty they charge you another 20 buck for a full one.
Reply to
Habbi

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.