These are my favorite kinds of threads. I love the historical aspects of the hobby, especially when they are so well researched and written.
I grilled ChatGPT on this, and it was clueless. When I mentioned the dental connection, it gave me this answer:...The glue used at this time was an animal based glue, a hot hide glue which was occasionally mixed with a substance called C-Gum. I have been unable to discern what C-Gum is, but when I worked for a large dental instrument maker, I heard old timers talk about a compound that they called simply "C"...
That's that stuff they use a UV gun to cure. I kinda doubt that was a thing back then.I see something called c-bond dental adhesive:
C-Bond - light curing dental adhesive - Product<p>C-Bond is a light curing dental adhesive and used in the filling therapy as adhesive connection as well as bonding during the repair of resin-, ceramic-, crown- and bridge works.</p> <p>Packages:</p> <p><strong>Single packages: </strong>bottle 5 ml</p> <p><strong>Assortment packages...www.megadenta.de