Hobart SWX 120 is specifically designed for the wind tower manufacturing industry where highintegrity longitudinal and circumferential welds are the challenge and productive welding a prerequisite. The formulation of this aluminate-basic flux has been adapted towards a higher basicity while maintaining the good welding characteristics of a lower basicity flux. The result is a “production” flux that yields remarkably good low-temperature impact toughness down to -50°C (-58°F), using SDX S2 or SDX S2Si-EM12K welding wires. This flux guarantees uniform chemistry and mechanical properties throughout the heavy, multi-layer welds that are familiar to this industry. SWX 120 has a high current carrying capacity and allows high travel speeds. The slag is easily removed from the first layers in commonly applied narrow Y-joints and self-detaching in subsequent filler and capping layers. Very well suited for single-wire, twin-wire, tandem and tandem twin-wire welding, offering higher welding productivity and increased efficiency. Other industries with similar requirements, such as pressure vessel fabrication and general construction, will benefit equally well from this outstanding welding flux. Use of the flux in combination with Hobart cored wires offers further opportunities to improve weld metal quality, making use of unique cored wire properties.