Spray Gun Spray Guide - Features and Techniques of Spray Construction for Aut...

Spray Gun Spray Guide - Features and Techniques of Spray Construction for Auto Refinishing

1. Characteristics of spraying construction of automobile repair

Automobile repair is the same as construction in other fields. For example, brush coating, roller coating, dip coating, curtain coating and high-pressure airless spraying are generally not used here. Common construction methods in other occasions, compressed air mist are used in most cases. chemical spraying. If the vehicle to be repaired uses metallic flash paint, it is also necessary to know whether electrostatic spraying is used for the last primer when the vehicle is sprayed with the topcoat in the auto assembly plant. If it is, electrostatic spraying should also be used in the repair, otherwise, the color difference may be caused by the direction of the aluminum powder in the repaired coating being different from the original coating.

Painting for car repairs is different from the painting lines of car manufacturers. In terms of the requirements of the painting process, although it cannot be said that its requirements are lower, it also has its particularities, such as simplicity and ease of operation, convenient color change, large and small spraying area, and intermittent operation most of the time, etc. . Therefore, it seems that it is easier to meet the requirements of most automobile repair construction with traditional spray guns.

With the rapid growth of metallic glitter paints and pearlescent paints in recent years, cars have become more and more luxurious, and the performance of automotive refinish coatings has also been continuously improved, so the requirements for spraying construction have also increased accordingly. Therefore, spraying light-colored metallic glitter paint is much more demanding in terms of construction than spraying dark-colored metallic glitter paint. The construction stability and chromatic aberration of light-colored metallic glitter paint have different degrees of difficulty in quality control, especially its so-called random light heterochromia is much more sensitive than dark paint. Therefore, when spraying light-colored metallic flash paint, the coating conditions and process should be strictly controlled according to the construction essentials of the auto refinish paint used.