For Info! This is my first review, although I order from Amazon since 2006. At first I was still the "Chimney Window Cleaner" excited ... finally prevents div. Windscreen cleaners, ect. The cleaning performance until then was quite okay, but after cleaning the ca.der 10th verrusten oven washer I saw the first "SCRATCH" !!! Thought at first, it'll be one probably by the general cleaning when clean -. No, because ... in exchange betw ZEWA + Glasrein / ZEWA + ash and these "fire-Window Cleaner" was immediately clear to me that this "pad's" the perpetrators of the scratches were, unfortunately. Presumably, however, is just my disk not as high as in many others here - I do not know.
Conclusion: Have aufghört with these "pad" to clean once more and also disposed of the same!
But ... by this circumstance and a long search, I have come to "AshEx gel" JEMAKO and absolutely loved it.