Electrostatic spray guns can affect the finish of the product during the painting process if the gun is not operated properly. A good finish is characterized by:

1. Uniform coating distribution

2. The coating should not be too thick or too thin. Points to note during spraying:

The distance between the nozzle outlet and the coated object is known as the gun distance. The smaller the gun distance, the greater the spray pressure, leading to a greater impact on the product and an uneven coating, which may result in excessive thickness. A larger gun distance reduces the spray pressure, making it easier for the paint to be wasted, leading to insufficient material on the coated object and an inadequate thickness. The spray fan should be perpendicular to the coated surface. When manually operating the spray gun, the spray width should not be excessive to avoid an uneven coating. The operation of the electrostatic spray gun should always be parallel to the coated surface and perpendicular to the spray fan. An unstable operating speed results in uneven coating thickness; too fast and the coating is too thin, too slow and the coating is too thick. In summary, when using spray equipment, a moderate force and appropriate distance are essential to achieve the desired coating effect. After the job, it is also important to complete follow-up tasks such as cleaning up the paint and tools, and securely storing any leftover paint. These are all issues that need to be addressed.

Key considerations for spray painting include the speed of movement, trigger control, gun distance, and grip posture, among others. Below are detailed explanations:

One: The speed of the spray gun's movement. During the spraying operation, the speed at which the spray gun moves significantly affects the coating effect.

If the manual spray gun moves too quickly, the coated surface will have a thin coating, appearing lean and with poor leveling and roughness.

If the manual spray gun moves slowly, the coated surface will definitely be uneven, and it is prone to sagging.

3. The ideal spray gun movement speed is to ensure that the coated surface is full, even, and wet after the spraying is completed. This requires an operator with a certain amount of spraying experience to control.

Trigger Control: The spray gun is controlled by the trigger. The deeper the trigger is pulled, the greater the flow rate of the liquid. During the traditional gun movement process of electrostatic spray equipment, the trigger is often fully engaged instead of half-pulled. To avoid the accumulation of paint at the end of each gun movement, experienced painters need to slightly release the trigger to reduce the paint supply.

The orientation of the spray gun relative to the substrate surface should be kept perpendicular, or as close to perpendicular as possible. If the spray gun is slightly tilted, the result will undoubtedly cause the spray pattern to flow unevenly to one side, while the other side appears thin and lackluster, potentially leading to striped coatings.

Four, the distance between the spray gun and the base material surface. For siphon spray guns, the optimal working distance is 15 to 20 cm. If the distance is too close, it may cause dripping, and even lead to inconsistent colors when spraying metallic or pearl finishes. If the distance is too far, exceeding 20 cm, it may result in dry spray or over-spray, which can degrade the leveling properties of the paint. There may also be a possibility of color change when applying metallic finishes. Pressure spray guns can be positioned further away from the base material. Generally, the optimal distance is between 20 to 30 cm. These are all principles that must be followed during the painting process.

Five, Grip the gun. The electrostatic spray gun is held with the palm, thumb, pinky, and ring finger, while the index and middle fingers pull the trigger. Some painters switch their grip on the gun occasionally during long hours of work, sometimes using just the thumb with the palm and pinky, and other times coordinating with the ring finger to hold the gun, using the index and middle fingers to pull the trigger. This method of electrostatic spraying equipment can alleviate fatigue and enhance work efficiency.