How does car paint crack during trial work？

In the whole process of car paint construction, if you don't pay special attention to it, various problems will appear, resulting in the extreme lack of engineering construction. At least car paint cracking is one of the common problems. How can such a thing happen? Cracking means that a period of time has passed after the painting is finished. The coating surface is divided into very cat-like capillary cracks. They will eventually develop into cracks and surround the entire spray paint layer. So the reason for cracking and how to prevent it?

1. Degreasing

The paint was sprayed on a cracked surface, and people should be careful about the substrate when removing the oil.

2. Dryer/paint thinner

Too much or too little drier is added to component products. When you add drier or paint thinner, you should rely on a suitable scale, and mix it with one-component products according to the appropriate proportion. Too much paint thinner depends on the appropriate scale or viscosity, and mix according to the appropriate proportion.

3. Spray paint

The topcoat products are not sufficiently mixed, so all architectural coating products must be fully mixed before painting. The coating under the car paint is sprayed too thick, so at the time of construction, it is necessary to prevent the spray paint from being too thick, and manipulate the coating to be thicker than a larger range. The closed coating is sprayed too thickly, usually one or two thin layers of fully transparent sealant coating are sprayed. If the paint spray is too thick, spray the paint according to the proposed column height, and choose the appropriate spray technology to prevent excessive spray paint. Pay special attention to remove the defective coating and paint again.