MIG WIRE LINCOLN SUPER GLAZE 4043 1.2MM
Volume Discounts for ABN / Account holders -
Availability: Low inventory, stocking up soon!
Lincoln Super Glaze ER4043 Aluminum MIG Welding Wire – 1.2mm
Premium Aluminum-Silicon MIG Wire for Superior Weld Quality
Lincoln Super Glaze 4043 is a copper-free, aluminum-silicon solid MIG welding wire (AWS classification ER4043) engineered for smooth feeding, stable arc performance, and consistently clean welds. With a 1.2mm diameter, this wire is ideal for a wide range of MIG welding applications on 6XXX-series and other heat-treatable aluminum alloys.
Key Features
- Proprietary Smooth Surface Finish – Reduces friction in the wire feed system for superior feedability and fewer feeding issues
- Consistent Chemical Composition (4.5–6.0% Silicon) – Delivers repeatable, high-quality welds every time
- Low Sensitivity to Weld Cracking – One of the most crack-resistant aluminum filler alloys available, ideal for crack-prone 6XXX base metals
- Lower Melting Point & Higher Fluidity than 5XXX series fillers – Produces a wider, flatter bead that flows smoothly into joint grooves
- Excellent Wetting Action & Smooth Bead Appearance – Clean, professional-looking finished welds
- High Penetration – Strong, reliable weld joints even on thicker aluminum sections
- Suitable for Elevated-Temperature Service – Performs reliably above 65°C (150°F), unlike many 5XXX alloys
Applications
Lincoln Super Glaze 4043 (1.2mm) is a versatile, all-purpose aluminum filler wire suited for:
- Automotive and transportation components (frame rails, engine mounts, suspension parts on 6061-T6/6063-T5)
- Bicycle and sporting equipment frame fabrication
- Heat exchangers, HVAC manifolds, and tube-to-header welds
- Marine hardware and structural aluminum fabrication
- General aluminum casting repair (including high-silicon casts like A356)
- Any 6XXX-series aluminum welding requiring crack resistance and strong penetration
Specifications
| Attribute | Detail |
|---|---|
| Wire Type | ER4043 Aluminum-Silicon MIG Wire |
| Diameter | 1.2mm |
| Silicon Content | 4.5–6.0% |
| Shielding Gas | 100% Argon |
| Polarity | DCEP (Direct Current Electrode Positive) |
| Process | GMAW (MIG) |
Why Choose Lincoln Super Glaze 4043?
Backed by Lincoln Electric's reputation for welding excellence, Super Glaze 4043 wire is trusted by professional fabricators, automotive manufacturers, and hobbyist welders alike for its reliable feedability, minimal spatter, and consistently strong, crack-resistant welds on heat-treatable aluminum alloys.
Note: Avoid using 4043 filler on 5XXX-series base metals, as this combination is not recommended due to reduced weld ductility.
This product is priced “per KG”. The minimum quantity available to purchase is shown in the "Pack Qty".
