To make the gold stick to the surface, Glair or white of egg is used in all cases.
"Practical Bookbinding"
Paul Adam
Some time before using, it should be scraped into a suitable vessel and mixed with Glair.
"Practical Bookbinding"
Paul Adam
Care must be taken that there is always a liberal supply of Glair in the depth of the round.
"Practical Bookbinding"
Paul Adam