This product does not work to treat even superficial scratches on a windscreen.
Removing scratches from car windows
Used to remove fine scratches from my watch. Despite repeated application according to instructions, no visible improvements. Very disappointed.
I had scratches on the glass of my Insta 360 one X2. With this polish and a Dremel with polishing attachment, I was able to achieve a perfect result. Therefore full marks!
Unfortunately, no effect was noticed at all. The scratches are rather deep and many, but even a small improvement could not be seen. The packaging says 30-40 applications. In my case, the paste was finished after 3 applications. You get very little for your money.
Guest
I bumped my smartwatch on a ceramic tile and scratched it deeply. The scratch went across the entire watch. Very annoying. This product works better than expected (Gorilla Glass 3). However, I had to divide the polishing strips (I cut them in half) and the polishing paste well. Needed about 12 passes of 3 minutes each to polish out the deep scratches. But the result is really impressive. 99% of the scratches are gone or so that they are no longer annoying. I would never have thought that with these deep scratches. Of course, I also sanded out the finer scratches straight away. 3-4 passes of 3 minutes each are completely sufficient. So, allow enough time and patience, then it works...
Does not work even with small scratches
Funktioniert sehr Gut !!!