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The arc is submerged under a blanket of "flux" and is therefore usually not visible during the welding operation, making the process excellent for health and safety as there is no exposed arc to cause "arc eye" and very little fume. There are two welding consumables in this process: the electrode and the flux. The electrode can be a solid wire, a cored wire, or a strip. The flux can be made of various minerals and relatively complex compounds produced in different forms. There are two welding consumables in this process: the electrode and the flux. The electrode can be a solid wire, a cored wire, or a strip. The flux can be made of various minerals and relatively complex compounds produced in different forms.