Paint markings:

Paint markings:

Also known as silver powder blooming, this is a common problem with silver color paint and pearl primers. The paint film appears to have been hammered, with some dark rings surrounding lighter silver powder or varying shades. If it is in the base coat, this phenomenon is often not found until after the clear coat is sprayed.

(1) Causes:

①Silver color paint is composed of various pigments and aluminum powder. Spraying silver color paint on an overly thick or wet paint layer will make the silver powder in the silver color paint unable to level and form markings.

②When the temperature is too low and the silver color paint is sprayed, the silver powder will be in a wet or liquid state for a long time, and the silver powder will accumulate into piles.


③When spraying silver color paint, if the air pressure used is low, or the distance between the spray gun and the surface plate is relatively close, when the paint surface reaches the working surface, too little solvent volatilization will result in the formation of a wet paint film, which will easily lead to streaks .

④ The thinner with slow evaporation rate is used, or the amount of thinner is too much.

① Dilute the silver color paint according to the requirements, and master the correct spraying skills, such as the distance between the spray gun and the sprayed surface and the moving speed of the spray gun.



②Do not apply wet paint too thickly. If necessary, properly increase the temperature in the spray-painting workshop, and properly prolong the standing time between paint films.



③If streaks have already occurred, it is recommended to use the correct dilution ratio and construction techniques to re-spray. If streaking occurs in a basecoat over which clearcoat has been applied, the paint film will need to be peeled off and reapplied.