Going to give it a try, tomorrow.
Egg glassing is Sodium silicate. We used to use that to also seal auto-radiator and head gasket leaks. This is from my neighbor who said that during the depression with no refrigeration they would jar fresh eggs in a lime solution, and it was supposed to keep them edible for at least 6 months or more without refrigeration.
Maybe you have found more than me so far... But I just heard about it and just now diving into it as real and usable without killing myself... lol
Here you go...
“Why Preserve With Lime Water?
Not only will lime-water preserved eggs last for two or more years, but they are also preserved in the shell, so they are much more versatile when it comes time to use them. The taste and consistency of such eggs are nearly identical to fresh eggs.
Preserving eggs this way is super economical and a fantastic way to use all those eggs you can’t use as quickly as your chickens can lay them. They do not require heat or refrigeration for storage and will be an excellent option should access to power be lost. Neither will they attract rodents or bugs.”
https://www.askaprepper.com/how-to-preserve-eggs-with-lime-water/