Hello everyone, I could really use some help with this. 5 months ago I applied sonax polymer net shield ,my car paint was visually perfect and clean when I applied. 2 weeks later I washed it, there was only a lot of dust on it ,no other kind of dirt. After the wash I noticed the whole car was covered with darker vertical stains, like from dirty water dripping down. And I have not been able to remove them since. I don`t know if it is a coincidence,or it has something to do with the sonax product. I have never heard of something like this happen, this is frustrating. I tried many ways to remove them , even put a vinegar soaked towel on the bonnet and wiped it after 15 min, nothing got removed. I waited 5 months to see if the stains would go away as the sonax protection faded but nothing. Although the paint is smooth and shiny .Its difficult to get the stains on camera but I think they are noticeable on the photo. Anyone have the same experience? Any advice or opinions on this I would appreciate, is there a way I can restore the paint or is this really permanent? thanks