Gesso refers to a traditional material used as a base or primer for painting and gilding on various surfaces, including furniture. It is typically composed of a mixture of chalk, gypsum, glue, and pigment, resulting in a smooth and white coating. Gesso is applied to furniture surfaces to create a smooth, even foundation for painting or to provide a layer of protection. It helps to seal the porous surface and allows the paint or gilding to adhere better. Additionally, gesso can also be sculpted or carved to create decorative designs on the furniture. Plastic preparation used for raised decoration.