What was the environment like? Was it cold when he applied it or hot and humid? As stated, UK was meant to be used in colder climates to help with the flashing. Under normal circumstances, weather that is, Classic would be a better alternative to UK.
I would make sure that all the prep was done properly, i.e. Polishing and complete wipe down with some type of oil remover prior to laying the coating down.
Bruce
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