UBS6061 - Unibraze ER70S-6 .023 Solid MIG Wire - 1kg Spool

Perfect Welds for Auto Body and Hobby Projects

Take your welding projects to the next level with the Unibraze ER70S-6 .023" MIG Wire. If you are working on automotive restoration, exhaust repairs, or custom sheet metal fabrication, this is the wire you need in your machine. The ultra-thin 0.023-inch diameter allows you to weld thin steel gauges—as light as 24 gauge—without the frustration of blowing holes through the material. It offers the perfect balance of heat input and deposition, giving you the control necessary for delicate lap joints and butt welds on car fenders and quarter panels.

This 1kg (approx. 2.2 lbs) spool is sized perfectly to fit standard 4-inch hubs found on most portable MIG welders, including popular models from Lincoln, Miller, Hobart, and various import brands. You don't need a massive industrial machine to get professional results; you just need the right consumable. The ER70S-6 formula includes extra cleaning agents (manganese and silicon) inside the steel, which help draw out impurities. This means if your metal isn't perfectly shiny—perhaps it has a little surface rust or mill scale—this wire will still help you lay down a solid, clean bead with minimal porosity.

One of the biggest advantages of Unibraze wire is the quality of the copper coating. This ensures the wire slides smoothly through your torch liner and makes good electrical contact, giving you a steady, buzzing arc rather than a sputtering one. Less spatter means less time grinding and cleaning up after you finish welding. Whether you are a weekend warrior building a go-kart or a serious DIYer fixing farm equipment, this wire provides the reliability and ease of use required for high-quality craftsmanship.

Recommended Setup

For the best results on thin steel, use a shielding gas mix of 75% Argon and 25% CO2 (often called C25). This will give you the smoothest arc and the least amount of spatter. However, this wire is also fully compatible with 100% CO2 if you need deeper penetration or are working on a budget. Ensure your welder is set to DCEP (DC Electrode Positive) for standard MIG welding.