Originally Posted by HeliMech
The coating makes it tough. We have the same problem with helicopter windows in the Army. The trick is to find a polish kit that goes to about 15,000 grit. It will reduce the amount of haze in the windscreen. Just my experience.
I worked on all USArmy helicopter windshields years back.
There was a kit but cant remember the name. Mirco.... ?
As a final touch one might try a Auto finishing Glaze compound.
Fills in even microscopic scratches. Its like a miracle. An outer coating is needed or else it will eventually evaporate. No idea here. On paint a carnuba wax works.