AWS E1100 is an aluminum rod with pure aluminum as the core and a coating base with a salt base. For welding aluminum, pure aluminum containers.
AWS E4043 is an aluminum alloy electrode with aluminum-silicon alloy as the welding core and a coating-based salt-based alloy electrode. Its versatility is large. It is characterized by good hot crack resistance and weld metal with certain mechanical strength. For welding aluminum, aluminum-silicon alloy castings, forged aluminum, hard aluminum and other general aluminum alloy. However, it is not suitable to weld aluminum-magnesium alloys.