The operation of the spray gun is relatively simple. After preparing the basic material and equipment, keep the spray gun perpendicular to the surface of the object to be sprayed, and keep the nozzle opening at a suitable spray distance from the surface, and overlap spraying. But pay special attention to details. Pay attention to three points in spray gun operation, spraying distance, operating speed, and overlapping spraying.

1. Spraying distance

The distance from the front end of the spray gun to the object to be sprayed. When spraying, keep a certain spraying distance for spraying.

①If it is too close: it is easy to flow down ⇒ it is difficult to maintain the uniformity of the film thickness.

②If it is too far away: the sprayed paint is easy to splash ⇒ the waste of paint and the deterioration of the working environment. In general, the spraying distance of the spray gun is between 150mm~300mm.

2. Operating speed

The moving speed of the spray gun is generally 3~4m/s. Keep the direction perpendicular to the coated surface and move at a certain speed.

3. Overlap spraying

The usual spray gun has an elliptical slender round shape, and the tip gradually becomes thinner, so in general, the size of the spray gun moves in an overlap of 1/2 to 1/4 to form a uniform film thickness. After using the spray gun, it is necessary to clean the spray gun in time to avoid improper cleaning of the spray gun and affect the next use.

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