This is simply an Anti-fog spray, nothing more, oh wait, it does not work and is overpriced! I thought I am buying a water repellent coating spray - the one where water or not even drops of water stay on, but the description is ambiguous on what the product actually is. But ok, I bought it, I over paid for what it is, let me then use it. I did apply it on according to instructions , but it did not work. The windows of my car where still getting foggy. I had to put the A/C ventilator very high for a few minutes to have the fog disappear and avoid a dangerous situation.