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Lincoln Electric's SuperGlaze 4043 (ED700115) is an ER4043 classification aluminum MIG wire engineered for precision and performance in GMAW processes. The wire composition includes approximately 5% silicon, which serves as the primary alloying element. This addition significantly improves the fluidity of the molten pool and reduces the solidus temperature, providing excellent wetting action. This characteristic makes 4043 the preferred choice for welders seeking a flat bead profile and reduced sensitivity to solidification cracking, particularly when welding heat-treatable base alloys like the 6xxx series.
The "SuperGlaze" designation refers to Lincoln's advanced surface treatment and spooling process. Unlike standard aluminum wires that may have microscopic surface imperfections, SuperGlaze wire is manufactured to control the surface oxide and lubricity. This results in a stable coefficient of friction, preventing the "stick-slip" phenomenon often encountered in push-pull or standard push gun setups. Furthermore, the smooth surface minimizes the generation of aluminum shavings (fines) at the drive rolls and liner, which are a primary cause of arc instability and burn-backs in automated and manual welding operations.
Technically, this wire operates best with 100% Argon shielding gas, though Argon/Helium mixtures can be used for thicker sections to increase heat input. While 4043 is softer than 5356, making it slightly more challenging to push through long torches without the right liner (Teflon/U-groove rolls recommended), the SuperGlaze finish mitigates many feeding risks. Note that while 4043 provides superior crack resistance and flow, it is not recommended for parts that will be subsequently anodized if color matching is critical, as the silicon content will turn the weld area dark gray during the anodizing process.
| Additional Information |
|---|
| Brand:Lincoln Electric |
| Aws Spec:ER4043 |
| Diameter:0.035 in |
| Packaging:20 lb Spool |
| Weld Process:MIG (GMAW) |
| Polarity:DC |
| Position:All Position |
| Material Composition:Aluminum Silicon (5% Si) |
| Wire Diameter:0.035" |
| Wire Type:Solid |
| Shielding Gas Requirement:100% Argon, Argon/Helium Mixtures |
| Spool Size:20 lb |
| AWS Classification:ER4043 |
| Applications:Automotive Components, Bicycles, General Fabrication |
| Tensile Strength:27,000 - 45,000 PSI (Typical) |
| Packaging Description:20lb spool |
