The taste is not harmful, but it does mean you have a good sense of taste.
The taste comes from the adhesive on the envelope, which is typically made from gum arabic or synthetic compounds like polyvinyl acetate. These compounds can give the envelope seal a slightly bitter or unpleasant taste.
glue it is a type of glue activated by liquid (your spit)
Wax is NOT a good substance for glue, it can seal things such as envelopes, but will not actually glue anything.
Most envelopes are pre-glued with 'gum arabic'
No, super glue does not taste good. Ingesting super glue can be toxic and harmful to your health. It is important to keep super glue away from your mouth and out of reach from children.
No super Glue doesn't taste good.
At least since the 1400's and probably much earlier.
No, if you are referring to the ones you lick, they use a Casein-based glue.
With self-sealing envelopes, all one have to do is to remove the protective tape from the flap and close the flap down for a secure seal. It differs from other envelopes in that it doesn't require glue to seal the envelope so it is more convenient.
Print carefully, don't press too hard, and you'll be okay.
Take the rollers out and wipe them with a rag containing Goof Off.
She died in the series by licking cheap glue on the wedding announcement. envelopes.