Executive ER4043 solid aluminum welding wire is designed to have smooth and consistent feedability. Executive aluminum wire is non-annealed which allows for smoother feedability especially when utilizing long MIG guns. Our enhanced feedability design uses less lubricant than standard aluminum wire resulting in considerably less fume generation. The addition of 5% Silicon results in improved fluidity with a less crack sensitive bright weld bead. Executive 4043 will typically turn dark gray in color after the anodizing process.