Light Blue Patina is designed for use on copper, brass, bronze, and Metal Finish Supply's MetalGlaze™ glazes. Light Blue Patina reactions produce various shades of light blue & light blue/greens on copper, brass, and bronze. This solution can be applied directly onto copper alloys, or onto the final, damp coat of one of our MetalGlazes™. On copper alloys, Light Blue Patina will react to form shades of light blue and light blue/green. When applied to one of our MetalGlaze™ products, the colors are determined by the glaze being used, though they tend toward a variety of light blues and milky whitish blue. Regardless of the medium being used, colors may be altered with water mists or by subjecting the parts to high humidity for various periods of time. Patination of copper and copper alloy metals is more an art than a science and is easy to learn with Metal Finish Supply, Inc. products..