Clear Powder Coat Cracking Problem

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    I have a sporatic problem with clears applied over other colors of cured powder. Sometime, but not always, I get hairline “spider web” cracks in the clear. Its usually where there is a curve or angle in the part. It doesn’t seem to appear right away, but over the next few days after application. Does you know what might be causing this? Under cure? Over cure? To much heat? Not enough?

    Thank you……

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