YESWELDER Silicon Aluminum Welding Wire ER4043. 035-Diameter, 1-Pound Spool.

Aluminum welding wire ER4043 is a generalpurpose type aluminum welding wire. It contains silicon additives, which result in improved fluidity (wetting actionof the weld pool and also produces a weld less sensitive to ing. Its bright weld finish makes it a popular choice of welders. It can be used to weld various grades of aluminum.