Paint is too thick.

Decrease the oil output of the spray gun, increase the gun 

speed and reduce the spray   frequency.

The paint itself   is hard and brittle, and the paint matching is poor.

Choose the right paint.

Improper surface   treatment method and incomplete cleaning.

Use the correct   method to carefully treat the surface of the workpiece. Thoroughly clean the   surface of the workpiece, paying special attention to the treatment around   the feathery edge.

When painting,   the temperature of the substrate is too high or too low.

Ensure that the   surface temperature of the coated object is within the recommended process   range.

The paint film   is too thick.The leveling time between each paint is not enough, and the   surface of the paint film is dried by compressed air, causing the solvent   inside the paint film to not volatilize in time.

Use the correct   spraying method to ensure that the leveling time between each paint film is   sufficient.

The accelerator   content is too much and the surface layer dries too fast.

Adding reasonable   amount of accelerator.

The curing energy or curing 

temperature is too high, especially 

in the use of UV topcoats..

Control the   curing energy or curing temperature within the applicable range of the paint.

Paint expired.

Ensure that the   paint is used within the warranty period.

External impact.

Reasonable   packaging to avoid bumps during transportation, loading, unloading and   transshipment.