Last Updated: January 2026 Choosing a filler rod is usually the first thing that causes confusion when welding aluminum. The puddle reacts fast, heat spreads quickly, and different alloys behave in ways that aren’t always obvious. That means the filler rod you choose plays a big role in how clean and predictable the weld turns…
Last Updated: January 2026 Aluminum welding looks simple until the weld starts cracking or refusing to flow. That’s usually when filler rod choice comes into focus. Ask experienced welders what the most common aluminum filler rod is, and you’ll hear the same answers again and again. Most aluminum work revolves around a small group of…
Last Updated: January 2026 Aluminum welding usually feels simple right up until the puddle stops behaving. The bead won’t wet out, cracking shows up, or the weld just feels harder than it should. In most cases, that’s when filler rod choice becomes the real issue. Since 6061 aluminum is one of the most common alloys…
Last Updated: January 2026 Cast aluminum is usually where welding stops feeling easy. The puddle behaves differently, contamination shows up fast, and cracking becomes a real risk if the wrong filler rod is used. That’s why filler choice matters more here than with most standard aluminum jobs. Unlike clean plate or extrusion, cast aluminum brings…