This solution is designed to be used on steel in conjunction with our Copper Plate. Rainbow Torch will create a wide variety of colors similar to those produced by the application of intense torch heat upon steel. These effects are easy to create, and are limited only by your imagination. With a little practice, a competent metal finisher can render extremely complicated colorful patterns and designs on steel in this easy to use, two step process. Many shades of blue, gray, green, red, and brown result when this solution is sprayed on top of our Copper Plate solution. The end result is a bright, colorful, multi-hued finish. If you desire a more subtle look, these colors and textures may be further altered by allowing the finished part to oxidize naturally for a controlled period of time. Oxidation softens and textures the colors, resulting in a more matte-like finish.