Hello, I was at an ADAC driving safety training today. Due to the constant watering of the track, my car naturally looked like sow. My problem is that there are lots of stains on the paint, I guess it’s lime stains that have burned cleanly into the paint through the sun. Having arrived at home, I washed the car by hand, so I didn’t see it much better after the leathering, I immediately washed it a second time by hand. It still looks terrible to me, but especially on the bonnet and at the thresholdrs. Did I have a nano-sealing made two weeks ago with the conditioner, but doesn’t seem to have stopped the lime as well How do I get rid of the lime stains? Dilute the car with normal vinegar ringers with water? Does it attack the sealing? Or maybe other tips, but I didn’t want to polish it, otherwise I would have saved myself the sealing. Thank you MFG