Re: Was glue ever made from animal parts?

Kevin

More than 100 million pounds of animal glue is used each year in the US alone. 
The glue is essentially collagen, a protein derived from the skin, bones and 
connective tissue of cattle and is an important byproduct of the meat packing 
industry.

These glues are used in making envelopes and similar structures, woodworking, 
gummed tapes, sandpaper, bookbinding, textile sizings, paper sizing, cork 
bottle caps, safety matches and uranium mining.

It would take a small book to fully describe how animal glue works in each of 
the diverse applications.

Horse glue is generally made the same way, as is fish glue.

Cattle are used mostly because of a steady domestic supply.