White Clay Bole for use in water gilding techniques. Traditionally, White Clay Bole has been used underneath all colors of gold and silver. When gold is applied on the White Bole, the bright white finish creates an elegant substrate for gold and is often seen in furniture gilding. Use over traditional chalk gesso ground. Bole needs to be applied with a solution of rabbit skin glue. This Bole is manufactured by Sinopia. The formula was developed by working with master gilders to craft a rich creamy bole that burnishes to a beautiful highly reflective luster.