Paint drips are more likely to occur when the three conditions of viscosity, film thickness, and component orientation are disrupted.
■Cause of Occurrence: Drips are an appearance defect where traces of paint flow remain. Even a single line or a localized accumulation will stop the visual inspection. Common causes include decreased paint viscosity, excessive film thickness, close gun distance, and poor part orientation. Corners, areas around holes, and downward-facing surfaces are places where paint tends to accumulate and drip easily.
■Truth: It should not be resolved solely by the skill of the operator. Even if the viscosity is adjusted, if the discharge amount is too high, the film thickness will increase, and if the application method is poor, the paint will flow to the lower side. This is a warning that occurs when viscosity, film thickness, orientation, and drying time overlap.
■Improvement Measures: By checking and recording four points—areas where drips occurred, the number of occurrences, whether the film thickness is within standards, whether the viscosity is within the set range, and whether the part orientation is in a position that is less likely to flow—you can narrow down the causes. Please utilize materials that can confirm painting conditions, film thickness, and jig orientation.
![[Factory Report No. 418] Sosan Optical Coating Co., Ltd. Fukushima Factory](https://image.mono.ipros.com/public/product/image/4dc/2000733893/IPROS75668330171560341088.png?w=280&h=280)
