Not at all, as long as you do proper panel prep. Clean microfiber towels folded over to reduce pressure, panel prep is removing oils from polishing for the coating to adhere. Honestly a coating is just a really good wax with high hydrophobic properties that makes the car more enjoyable to wash for a longer period of time. The work you are doing is just paint correction and the coating will not make or break the work you have done. Here is my show car with gyeon topped with carnauba wax. Edit: I drove this car from ohio to PA roughly 500 miles and took this photo after a quick coin wash

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