Moin people! I recently sealed my car. But I noticed 2 days later, at the first laundry that the Beading is not as great as in many other areas of the car. I probably did not apply the sealing carefully enough at these places. The water runs off super, only not as fast and beautiful as at other places. Therefore my question, what to do if I want to seal over it again ? Must I degrease before with a mixture of IPA, or dimply it polish, or simply on it with the seal (vehicle is clean of course ^^ ). LG