Causes | Solutions |
The amount of paint produced during spraying is too small or too large. The spraying distance is too far or too close. Poor atomization of spray gun and excessive paint mist particles. | Choose a nozzle with a suitable caliber, and adjust the appropriate air pressure, spraying distance, oil output and spraying speed according to the paint requirements. |
The temperature of the workpiece is too high, so that the solvent volatilizes instantly, and the wet film is too late to level. | Reduce the temperature of the surface of the coated object. |
When the paint viscosity is too large, the paint atomization and wet film leveling are poor. Too much thinner or unsuitable. | Use the matching diluent and adjust the amount of diluent to be added. |
The environmental humidity is high. Or enter the baking room when the flash time is insufficient. | Control the temperature and humidity of the painting environment to extend the flash-out time. |
The air flow rate in the spraying room is too fast, so that the wet film solvent evaporates quickly and is difficult to level. | Reduce the temperature and wind speed of the spraying environment to slow down the solvent evaporation rate. |
The rough substrate can easily cause short-wave orange peel. | Carefully polish, choose the appropriate sandpaper model and polishing method to eliminate the roughness of the coated surface. |