Ah, so rainx is perfectly safe on cars, and other road vehicles, but is not safe enough for multi layer aerospace glass strong enough to survive impacts and enormous cabin pressure.
So your car has high power, electrically heated (front) windows with polyvinyl butyral (non-glass) interlayers?
Does "rainx" have the same properties as aircraft rain repellent at high altitude and at very low and high temperatures? (Aircraft rain repellant systems have been known to leak from time to time even when it's not raining).
Wasn't aircraft rain repellent banned because of it's toxic qualities? Maybe you should be asking if it's safe to use airplane products on cars?
