do you use the same polarity as solid mig wire when using dual flux core 7100? Do you use the flux core rollers?
ESAB Dual Shield 7100 Ultra Mild Steel MIG Wire
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Open Mar 21, 2026 - 11:51 PM
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Answer
Mar 23, 2026 - 05:53 PM
Yes, ESAB Dual Shield 7100 Ultra uses DCEP (Direct Current Electrode Positive) polarity, exactly like standard solid MIG wire. However, you must switch to knurled drive rollers (flux-core rollers) to properly grip and feed the wire without crushing its softer, tubular structure.
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ESAB Dual Shield 7100 Ultra Mild Steel MIG Wire
ESAB DUAL SHIELD® 7100 ULTRA Mild steel flux core MIG wire Like other ESAB Dual Shield products, Dual Shield 7100 Ultra operates in a wider parameter range and generates less welding fumes than competitive welding wires. The low spatter levels and easy slag removal minimizes post weld cleanup. ...
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