Weld gas for TIG Home › Forums › Weld Forum › Weld gas for TIG This topic has 0 replies, 1 voice, and was last updated 9 years, 2 months ago by admin. Viewing 1 post (of 1 total) Author Posts August 2, 2001 at 8:04 pm #103 adminKeymaster Ed, I agree with all your thoughts for Mig welding gas. I have just one question that I havent been able to get answerd. Is it ever a good idea to use a mix of 98/2 or more of Co2 when Tig welding? Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In