
Clay, also known as Bole is used in traditional water-gilding process. The bole is mixed with rabbit skin glue and applied to the prepared surface before laying down the gold leaf.
This bole is made in USA by Sinopia.
A 4 oz jar weighs about 113 g
A 16 oz jar weighs about 650 g
A 32 oz jar weighs about 1.3 kg
All these are the very traditional colors that have been used in gilding industry over centuries.