If there is a lack of gloss on the surface of the originally flat and smooth car paint surface, especially during the process of car paint care, it can be observed under a microscope that the surface is rough. What is the reason for this? Here is a brief analysis of automotive repair paint, as follows:

1、 Poor adhesion of the primer, or topcoat sprayed on it before the primer has fully cured.

2、 The quality of the materials used for paint maintenance is too poor or the model is incorrect, or other incompatible additives are used.

3、 Because the temperature is too high or too low, the drying speed of the coating is too slow.

4、 Improper paint distribution or spraying method.

5、 The surface quality of the substrate is too poor.

6、 Solvent vapor or car exhaust has penetrated the surface of the paint film.

7、 The surface of the paint film is contaminated with wax, grease, oil, soapy water, or water.

8、 Applying too strong detergents and cleaning agents to the newly sprayed paint film, polishing too early after spraying the topcoat, or using too thick polishing paste.

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