0700300690 - ESAB PTFE Aluminum MIG Liner 1.2-1.6mm (3.5m)

Smooth Aluminum Welding Starts Here

Are you tired of fighting with your wire feeder while trying to weld aluminum? The struggle with "bird-nesting" and erratic wire speeds is often caused by using the wrong liner. The ESAB PTFE Liner 1.2-1.6mm 3.5M is your solution for frustration-free aluminum MIG welding. Designed specifically for soft wires, this liner replaces the standard steel coil in your MIG gun to provide a slick, low-friction path for your filler metal.

Aluminum wire is soft and pliable. When you try to push it through a steel liner—especially one that has been used for steel wire and is full of grit—the friction causes the wire to drag. This drag forces the drive rolls to work harder, often causing the wire to buckle and tangle before it even enters the cable. By switching to this ESAB PTFE (Teflon) liner, you virtually eliminate that friction. The result? Your wire feeds consistently, your arc stays steady, and your welds look professional.

Perfect Fit for 10ft and 3m Guns

This liner comes in a 3.5-meter length, making it the perfect replacement for standard 10-foot or 3-meter MIG assemblies. It is designed to be trimmed to fit, ensuring a custom, gap-free installation in your specific gun handle. It is sized to handle the heavier aluminum wires, specifically 1.2mm (0.045") and 1.6mm (1/16"), which are commonly used for structural aluminum work, boat repairs, and trailer fabrication.

Don't let a cheap or worn-out liner compromise your project. Upgrading to a proper PTFE liner is one of the most cost-effective ways to improve your aluminum welding setup. Whether you are a professional fabricator or a serious hobbyist, keeping a spare ESAB 0700300690 liner in your toolbox ensures you are always ready to tackle aluminum jobs with confidence. Remember to also use U-groove drive rolls and keep your gun cable as straight as possible for the best results.