Windshields are repeatedly dealt with with hydrophobic coatings that repel water

https://nova-wiki.win/index.php/Beyond_the_Crack:_Understanding_the_Importance_of_Auto_Glass_Integrity_in_Kernersville,_NC

Windshields are in the main dealt with with hydrophobic coatings that repel water, enabling rain to bead off for more suitable visibility all the way through storms.