Powder Coating Troubleshooting: Yuzu Skin

We also introduce measures taken due to the voltage of the electrostatic controller being too high!

We will introduce troubleshooting for the issue of poor leveling of the coating (the surface of the coating feels like it has waves of various sizes), known as "yuzu skin." If the cause is that the rise in baking temperature of the object being coated is too slow, it is possible to take measures by measuring the heating conditions of the baking oven and determining the appropriate temperature settings. Additionally, there are measures for cases where the paint has fallen due to physical factors such as wind before entering the baking and drying oven. [Causes and Measures (Excerpt)] ■ The rise in baking temperature of the object being coated is too slow → Measure the heating conditions of the baking oven (heating curve) and determine the appropriate temperature settings. ■ The temperature of the object being coated before painting is too high, resulting in excessive film thickness → Extend the cooling time between the water drainage drying oven and the painting booth. ■ Insufficient film thickness during painting or excessive film thickness → Reconsider the painting method (painting time, discharge amount, working method, etc.). *For more details, please refer to the PDF document or feel free to contact us.

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