Rockland Liquid Light is a silver-gelatin liquid emulsion designed to be easily applied to any material. Liquid light can be used for photographs on wood, glass, ceramics, plastics, chinaware, fabrics, metals, stone, walls, artist's canvas, even an egg. Its even possible to make salon-grade prints on the many handmade papers that are available on the market. Liquid Light is gelatin based that is melted down in hot water (as explained in the instructions).