U.S. World War 2 Original Water Resistant Casein Type Glue 4oz CanU. S. World War 2 Original Water Resistant Casein Type Glue 4oz Can Probably one of the strangest things we have came across over the years, WW2 glue. Honestly it's pretty neat. Cool design on the can, different fonts, bright white lettering over the classic OD green. Glue! We have not opened the cans but when you shake them it still sounds like powder. No clue if it still works, you are more than welcome to try. DO NOT EAT THIS WE ARE NOT