We rebuild a lot of trash truck boxes using Ar400, we use a dual shielded wire, typically lincoln 71m or elite with 75/25 but esab also has some good stuff.
There have been no issues with the duel shielded wires, had some issues in the past using short circuit mig.
Thank you! So AR400 is my decision to go. Guys, without your input I would have made so many mistakes!! Thanx again!