Quote:
Originally Posted by Xringer
Humm, CO2 is sometimes used as a shielding gas in wire-feed welders...
I'm very low on Nitrogen. What would happen if I used CO2 to flush out the air?
And trickled CO2 slowly while brazing??
Would it cause some horrible deposits to form inside the copper tube?
I have about 10 pounds of CO2  (Don't tell Al Gore)! |
I used Google and found a couple pages like this one..
co2 purge - HVAC-Talk: Heating, Air & Refrigeration Discussion
"CO2 is OK as a purge gas, as long as it is dry CO2".