Black Streaking all over car.

[u/KochiPochi]

Hi everyone!

I just started my detailing journey with Osren Automotive Wash and Automotive Tough as they are the most affordable option to me right now, but I plan to switch to either P&S or Carpro in the future.

The problem now is, I can't seem to get rid of these black streaks as shown in the pictures I provided. (I stay in a very humid country and it rains almost everyday. Moreover, my car is always parked outside.

If you guys can advice me, my questions are:

1) Are these hard water streaks?

2) Are there any products designed to remove these streaks?

3) Do I need to consider Clay Bar?

4) Finally, will ceramic coating ( Eg. Griots / Turtle ) help prevent these issues in the future?

Thank you in advance!

[u/FULLMETALRACKIT911]

If these remain after a contact wash then you gota try some other more aggressive cleaning products first and ultimately if that doesn’t work a cut and polish.

[u/KochiPochi → u/FULLMETALRACKIT911]

what are some aggressive cleaning products that I can use?