It is a best practice to document any defects that occur. You may well find that the rate of defects with a polyester wrinkle exceed those for smooth polyesters. Here are some of the questions that should be answered to resolve a reoccurring defect. Do they occur on all parts or just some? Are they on one side of the part or all sides? What is the gun-to-part distance where the defect is occurring? Is the distance different for areas without a defect? What is the film thickness of the coating where the defect occurs? Is it different than areas with no defects?