Plaster is a building material made from a mixture of gypsum, lime, or cement with water. It is commonly used to create smooth surfaces on walls and ceilings, providing a finished look. When applied, plaster hardens as it dries, making it durable and suitable for both interior and exterior applications. In addition to its use in construction, plaster can also be used for artistic purposes, such as creating sculptures or decorative moldings. Artists often use a specific type of plaster called plaster of Paris, which sets quickly and can be easily shaped.