Casein is the protein of milk. It is used to fix fillers on walls.
Consequently, caséine is a glue but can be used as a fludifiant agent in mortars and lime painting which facilitate their application.
6033 nerves glue
6030 skin rabbit glue
Blinders tape on charges and pigments : natural and synthetic resin, animales and végétales glues, caséin, eggs. The blinder gives a colored aspect, shiny qualities and hardness.
6031 Bones glue
6038 Additive of Styrene Butane