A lot of people talk about color in welds, but they don't always understand why the color does or does not matter. A rainbow of colors in the bead and heat-affected zone (HAZ) doesn’t automatically make it a good weld, and it can indicate a bad weld. It all depends on the material, the industry, and the application. On this episode of Playing With Fire, Josh talks about what it all means and makes it accessible for the novice and the pro.