Common faults in curtain coating include: 1. Unstable or broken liquid curtain 2. Uneven coating thickness 3. Coating sagging or running 4. Air bubbles in the coating 5. Pinholes or fish-eyes (craters) in the coating 6. Particles or impurities on the coating surface 7. Coating waste or low recovery efficiency 8. "Orange peel" effect on the coating surface 9. Poor coating quality at workpiece edges 10. Malfunctions in the coating circulation system

A complete curtain coating production line typically comprises the following process stages: 1.Panel Feeding 2.Surface Dust Removal 3.Curtain Coating 4.Coating Leveling 5.Drying and Curing 6.Cooling Treatment 7.Finished Product Discharge

A roller coating production line is an automated coating equipment that uses coating rollers to evenly transfer paint to the surface of a workpiece. A curtain coating production line, on the other hand, is an automated coating equipment that uses a continuous "liquid curtain" of paint to cover the surface of a workpiece.