Best Gas for MIG Welding: The Right Shielding Gas for Clean, Consistent Mild Steel Welds
Last Updated: December 2025 MIG welding depends heavily on the right shielding gas to produce clean, strong welds. Using the wrong gas can lead to excessive spatter, unstable arcs, shallow penetration, and poor bead appearance—even when your machine settings are otherwise dialed in. Choosing the correct gas isn’t just a preference; it directly affects weld…