03SIB50 - Harris ERCuSi-A Silicon Bronze TIG Rod 3/32" (2.5mm) 10lb Tube

Master TIG Brazing with Harris Silicon Bronze

If you are looking for the "duct tape" of the TIG welding world, the Harris Silicon Bronze (ERCuSi-A) TIG Rod is an essential addition to your filler metal arsenal. This 3/32" (2.5mm) rod is famous among fabricators, artists, and automotive restorers for its incredible ability to join mismatched metals. Whether you are welding steel to copper, attaching brass fittings to a steel tank, or working on cast iron repairs, this rod gets the job done with style and strength.

One of the standout applications for this rod is "TIG brazing" on galvanized steel. Unlike standard steel welding that burns off the zinc coating violently, Silicon Bronze melts at a lower temperature (around 1880° F). This allows you to bond the metals without disturbing the zinc coating as much, resulting in cleaner joints, less toxic fume generation (though safety gear is still mandatory!), and reduced risk of rusting later. It flows smoothly like gold and leaves a beautiful, corrosion-resistant bronze bead that looks fantastic on metal art projects.

This 10lb tube ensures you have plenty of material for large projects. The rods are 36 inches long, giving you plenty of reach and feeding control. For best results, use this rod with pure Argon gas and set your machine to DCEN (Direct Current Electrode Negative). It requires less heat than mild steel filler, so back off your pedal slightly and watch the puddle flow. Whether you are fixing a car body panel or creating a sculpture, Harris Silicon Bronze offers the control and versatility you need.

Common Applications

• Automotive Body Work: Great for sheet metal where minimizing warping is critical.
• Metal Art: Creates attractive bronze-colored welds on steel.
• Galvanized Steel: Welds without destroying the protective zinc layer.
• Dissimilar Joints: Easily joins copper to steel or brass to steel.