An insoluble material prepared by mixing animal glue with ammonium dichromate, potassium dichromate, or chrome alum. It was used as a glass cement and as a waterproofing agent in the early 20th century.
Sources Checked for Data in Record
- Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
- Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982