On the surface of an object coating is applied usually it is the substrate. By applying this coating it may be decorative, functional or both. It may differ completely covering the substrate or only cover parts of the substrate. Paper, fabric, film, foil, or sheet stock such as are substrates.

Roller coating is a process when the substrate starts and ends the process wound up in a roll. The process includes

• Forward Roller Coating
• Reverse Roller Coating