How to choose a spray gun for car painting?

How to choose a spray gun for car painting
The effect of car painting is not only affected by the quality of the paint, but the selection of the spray gun is also crucial. Even with high-quality spray paint and baking paint rooms, it may not be possible to achieve the standard paint spraying process, as the choice of spray gun is equally indispensable.
For car factory spraying, the process is complex and usually uses car high-temperature paint. When spraying the entire vehicle, a pressure delivery spray gun is the preferred choice. This type of spray gun has no gun pot design and only has a paint inlet, directly drawing paint from the paint tank. When the paint tank is pressurized, it can provide paint to multiple spray guns simultaneously, meeting the needs of large and continuous spraying.
If local repairs are to be made, it is recommended to use a gravity spray gun. It relies on its own gravity and negative pressure between nozzles to spray paint and atomize it in the air, making it very suitable for small area, small quantity, and frequent color changing spraying operations.Guangzhou WLD equipment co.ltd is a professional suppliers and manufacturer of spray booths and powder coating lines in Guangzhou,China.
In the field of automotive repair spraying, there are mainly two situations. Firstly, for topcoat spraying, one can choose economical, high flow, or low flow medium pressure spraying according to their needs. At this time, a suction spray gun is the ideal choice. Next is minor repair spraying, which is common in car 4S stores and includes primer, paint, varnish, and specialized spray guns for minor repairs. In these scenarios, it is also recommended to use suction spray guns.
Paint spray gun is a commonly used pneumatic technology tool in car painting and furniture painting. It can be directly used by installing paint and connecting it to a compressor.
In the automotive spray painting industry, the choice of spray gun caliber is very important. First, it is necessary to understand what the choice of spray gun caliber is? Repair guns generally use 0.3-1.3mm, and topcoats generally use 1.3-1.5mm. Traditionally, 1.5mm is the standard, while 1.7-3.0mm is suitable for large-area/primer anti rust paint.
So generally speaking, the diameter of the spray gun for painting is selected between 1.3-1.7mm, but it depends on the specific product being painted. For large areas, a larger diameter is used, and for small areas, a smaller diameter is used. If the area is large and requires high coating thickness, it is recommended to choose airless spraying equipment.
Spray guns are divided into traditional spray guns and environmentally friendly spray guns, and the caliber can be selected according to the market. I recommend environmentally friendly spray guns, which not only save paint atomization but also have high efficiency.