I was referring to a ss wire that is similar to flux core for mild steel in that it doesn't require a shielding gas, thus eliminating the trimix purchase. I just found it, it's 46 bucks a pound!! I was intrigued to see that US Forge recommends C25 for their normal ss wire. I would've thought the hig...

Yeah I still haven't completely ruled out C25 since it's preferable for the most common jobs, and pure CO2 produces more spatter albeit more penetration, but that would mean I can't weld stainless or aluminum. Although a rental is a good consideration, storage space is also important to me. As for t...

Ok, the guy at Praxair told me I could do stainless with C25, but I don't buy it. At this point it looks like I might do my mild steel welds with CO2 Paintball canisters, and my stainless steel welds with pure argon, leaving me with the option to do aluminum as well, that way I don't have to buy ano...

Hi, I'm a college student (Limited Funds) with a Lincoln SP 125+ mig welder. I currently have small portable bottles of pure CO2 I use for various things, and I now have a 25# tank that I need to choose a gas to fill with. Although a good portion of my jobs will be mild steel (hence C25), I also pla...