Flux Core welding is a type of Mig Welding that uses a hollow core electrode that is filled with a flux that will burn and melt over the weld to protect it from Oxidation while you weld. Welding with a standard solid core wire and Shielding Gas like Argon or CO2 is where the gas will flow over the weld to provide a shield from oxygen in the air while you weld.
Because …