??? I don't know for sure, but my impression was tint was the same as how the windshield is made ... hence making it SAFER when it shatters, because the film holds the pieces together, rather than let them fly all over the place
Someone may have some better evidence to back this up - or not - as I say, it is the impression I have gotten...
The best rules to form a young man are: to talk little, to hear much, to reflect alone upon what has passed in company, to distrust one's own opinions, and value others that deserve it.
Sir William Temple