Today the process of making playing cards is highly automated. Large sheets of paper are glued together to create a sheet of pasteboard; the glue may be black or dyed another dark color to increase the card stock's opacity. In the industry, this black compound is sometimes known as "gick". Some card manufacturers may purchase pasteboard from various suppliers; large companies such as USPCC create their own proprietary pasteboard. After the desired imagery is etched into printing plates, the art is printed onto each side of the pasteboard sheet, which is coated with a textured or smooth finish, sometimes called a varnish or print coating. These coatings can be water- or solvent-based, and different textures and visual effects can be achieved by adding certain dyes or foils, or using multiple varnish processes.