S222108-019 - Hobart Fabshield 21B .035" E71T-11 Self-Shielded Flux-Cored Wire 2lb Spool

Hobart Fabshield 21B .035" Flux-Cored Welding Wire Overview

The Hobart Fabshield 21B is a premium self-shielded flux-cored welding wire designed for general-purpose fabrication and repair. Classified as an E71T-11 wire, it is engineered to perform exceptionally well without the need for external shielding gas, making it a top choice for welders who require portability and reliability in diverse environments. This 2-pound spool of .035-inch diameter wire is specifically formulated for welding mild and galvanized steels, offering a versatile solution for maintenance, light construction, and hobbyist projects.

Technical Performance and E71T-11 Specifications

One of the standout features of the Fabshield 21B is its ability to operate on DC Straight Polarity (DCEN). This polarity setting is crucial for minimizing penetration depth, which significantly reduces the risk of burn-through when working with thin-gauge materials. Unlike solid wires that require a bottle of gas, the flux core inside this wire generates its own protective atmosphere during the arc, shielding the molten weld pool from atmospheric contaminants. This mechanism ensures sound welds with good mechanical properties, even in single or multi-pass applications. While solid wires like ER70S-6 might offer a cleaner bead appearance in controlled shop environments, the Fabshield 21B provides the rugged utility needed for real-world field conditions.

Outdoor and Galvanized Steel Applications

Welding outdoors presents unique challenges, primarily wind blowing away shielding gas, which leads to porosity and weak welds. The Hobart Fabshield 21B eliminates this issue entirely. Its self-shielding nature makes it impervious to drafty conditions, allowing for consistent, high-quality welds in the field, on the farm, or in the driveway. Additionally, this wire is particularly adept at handling galvanized steel, a material notorious for causing spatter and arc instability. The chemical composition of the flux helps to scavenge impurities and maintain a stable arc, ensuring that even coated steels can be joined effectively.

Why Choose Hobart Fabshield?

Hobart is a trusted name in the welding industry, known for producing consumables that deliver consistent results. The S222108-019 spool is compact and easy to handle, fitting standard 4-inch spool hubs found on many portable MIG welders. Whether you are repairing agricultural equipment, fixing a gate, or fabricating light structural components, the Fabshield 21B offers the convenience of "gasless" welding without sacrificing the structural integrity of the joint. It is an essential consumable for any welder's toolkit, providing the flexibility to tackle jobs where dragging a gas cylinder is impractical or impossible.