Five common defects in car paint after spraying

In the painting process, due to the lack of craftsmanship or technology, it is easy to cause some defects in the paint surface. Some appeared at that time, and some gradually appeared after a period of time. Based on these paint defects, Let's check what are the reasons for these defects?

1. Bubbling
Round bubbling or air bubbles appear on the paint surface, usually in the joint area or dead corner, or on the surface of thick putty. Reasons:
A.Due to improper application of primer and putty.
B.Poor quality thinner used Or the thinner is insufficient, the compressed air pressure is too high.

C.The paint film is covered on the gap or dead corner, so that a gap is formed under the paint film.

2. Cloud form
It generally produced on metallic paint, the color of the paint surface becomes whiter and cloud-like, also known as spotting or fogging. Causes:
A.The hardener used does not match.
B.Improper adjustment for spray gun or spray paint too thick.

C.Wrong drying method.

3. Cracking
There are irregular cracks on the paint surface, usually near the gap or edge:
A.The paint is not mixed uniformly and thoroughly.
B.There is oil or water in the compressed air.

C.The paint film is too thick and the leveling time is not enough.

4. Dust
If you find it is rough when touching the paint surface with your hands, feeling like there are many impurities trapped on the surface of the paint film. This kind of phenomenon is also called pocking mark:
A.The surface treatment before painting is not clean.

B.The painting environment is not clean and there are micro particles in the air.

5. Matte surface
The surface of the paint is smooth and flat, but lacks gloss. Causes:
A.The primer has poor adhesion or the top paint is sprayed before it is dry.
B.The ambient temperature is too low or too wet, the paint dries too slowly.
C.The paint is contaminated by wax or oil.