One of the most common quality issues with powder coating is an “orange peel” effect. Defined as an uneven texture of smooth finish products that resembles the skin of citrus fruit. The level of orange peel is visually determined by comparing to industry standards typically the Powder Coating Institute (PCI) smoothness standard grading chart. The expectations for what level of orange peel that is acceptable will vary by product. See below the many possible causes that affect orange peel and corrective solutions:
After curing, it is important to complete a visual check within the standard film thickness and compare it to the master panel of the finished product. Make sure it follows the Powder Coating Institute (PCI) smoothness standards as a guideline!