Causes | Solutions |
Paint is too thick. | Decrease the oil output of the spray gun, increase the gun speed and reduce the spray frequency. |
The paint itself is hard and brittle, and the paint matching is poor. | Choose the right paint. |
Improper surface treatment method and incomplete cleaning. | Use the correct method to carefully treat the surface of the workpiece. Thoroughly clean the surface of the workpiece, paying special attention to the treatment around the feathery edge. |
When painting, the temperature of the substrate is too high or too low. | Ensure that the surface temperature of the coated object is within the recommended process range. |
The paint film is too thick.The leveling time between each paint is not enough, and the surface of the paint film is dried by compressed air, causing the solvent inside the paint film to not volatilize in time. | Use the correct spraying method to ensure that the leveling time between each paint film is sufficient. |
The accelerator content is too much and the surface layer dries too fast. | Adding reasonable amount of accelerator. |
The curing energy or curing temperature is too high, especially in the use of UV topcoats.. | Control the curing energy or curing temperature within the applicable range of the paint. |
Paint expired. | Ensure that the paint is used within the warranty period. |
External impact. | Reasonable packaging to avoid bumps during transportation, loading, unloading and transshipment. |