1912, J. Leonard Monk, A Text Book of Stationery Binding: A Treatise on the Whole Art of Forwarding and Finishing Stationery Books:, When glairing in grained leathers such as Morocco a froth has a tendency to form; this can be dissipated by adding a spot or two of milk to an eggcup full of glaire.
1985, Unlike traditional egg glaires these are impervious to insect attack, and can be tooled long after application. BS glaire also keeps indefinitely, unlike egg glaire.
2004, Josep Cambras, The Complete Book of Bookbinding, You’ll also need glaire for gilding the edges, such as egg glaire or food-grade gelatin.
