The Gilder’s Whiting is a very fine white powder, soluble in water and odorless. To make a gesso for water gilding, you will need Whiting (Calcium Carbonate) and Rabit Skin Glue.
The Plaster of Paris is a pure gypsum-based plaster for making moulds, ceramics, ceiling, walls, and any decorative objects. Medium-density and porosity.
Rottenstone is also known as tripoli, a very fine abrasive for polishing to producing an old dusty look on picture frames and modern furniture.
Rottenstone is often used for polishing metals and distressing water gilded surfaces to reveal the bole (gilder’s clay).