Well I thought this stuff was awesome until now there is a permanent haze of little circles when it fogs and rains on my windshield making it super dangerous to drive with. Nothing I've tried makes removes it. i think the heat of the area in which I lived BAKED the silicone onto the glass and to refuses to come of with windex, rubbing alcohol, and all the suggestions posted on the internet via google search. I read of one guy who's been trying to remove this for three years. It does NOT wear AWAY with time in very hot areas of the country it gets baked on. This stuff shouldn't be sold if it makes your car and vision very dangerous. I am very unhappy with this product.