
Hobart's Fabshield 21B (S222108-022) is a high-performance E71T-11 flux-cored wire engineered for welders who demand reliability and versatility in a self-shielded package. This .035-inch diameter wire comes in a 10-pound spool and is designed for single or multiple pass applications on carbon steel. Unlike solid MIG wires that require a bottle of CO2 or Argon mix, Fabshield 21B relies on its internal flux composition to protect the weld pool, making it the go-to choice for outdoor environments and drafty shops.
Technically, this wire excels due to its operation on DC Electrode Negative (DCEN) polarity. This polarity setting is crucial for thin-gauge applications as it minimizes penetration into the base metal, thereby preventing burn-through and distortion on sheet metal and galvanized parts. While solid wires like ER70S-6 might offer a cleaner bead in controlled environments, Fabshield 21B offers superior practicality for "dirty" jobs involving rust, mill scale, or zinc coatings. The slag system is designed for easy removal, often peeling off with minimal chipping required.
For professional welders and fabricators, the Fabshield 21B offers a balance of arc softness and deposition efficiency. It bridges gaps effectively and maintains a stable arc even in out-of-position welds. If your project involves assembling light structural frames, repairing farm implements, or welding prefabricated galvanized components, this wire provides the mechanical properties and ease of use necessary to get the job done efficiently. It is compatible with most standard MIG welders capable of running flux-cored wire and reversing polarity.
| Additional Information |
|---|
| Brand:Hobart |
| Diameter:0.035 in |
| AWS Spec:E71T-11 |
| Packaging Description:10lb spool |
| Spool Size:10 lb Spool |
| Weld Process:Gasless, Flux-Cored (FCAW) |
| Position:All Position |
| Polarity:DCEN |
| Material Composition:Carbon Steel |
| Wire Type:Self-Shielded Flux-Cored |
| Shielding Gas Requirement:None (Self-Shielded) |
| Welding Position:All Positions |
| Current Type:DC Straight Polarity |





