Smooth Welding Experience：ARCCAPTAIN ER4043 Aluminum Welding Wire offers a smooth and stable arc, ensuring easy control and an excellent weld bead appearance. This high-quality aluminum welding wire is perfect for both professionals and hobbyists seeking superior results.

ER4043 Aluminum Welding Wire: This filler metal contains 5% silicon aluminum (AlSi5), specifically designed for the MIG welding process. It's known for its reliability and ease of use.

Versatile Applications: Ideal for welding various aluminum grades such as 3003, 3004, 5052, 6061, 6063, and casing alloys 43, 355, 356, and 214. Whether you're working on automotive parts, construction materials, or DIY projects, this welding wire is your go-to choice.

Melting Range and Density: With a melting range from 1065 °F to 1170 °F and a density of 0.097 lbs/in³, it provides consistent performance and durability. The post anodizing color is gray, ensuring a professional finish.

Specification: Available in convenient 1 lb spools with diameters of 0.030 inches and 0.035 inches, making it easy to handle and perfect for various welding tasks.