What is the cause of car paint blistering, and what is the cause of car paint blistering

The reasons for blistering of car paint are as follows:1. The quality of the paint is not good, and this problem often occurs in the roadside shops outside. These stores produce very low levels of paint** because they all use low-quality paint.

These paints are sprayed on the car, and the quality can be imagined.

2. The construction conditions and processes are not rigorous, and the construction conditions and processes of the coating are high. Before painting, it is forbidden to have any moisture on the surface of the paint. Previously, the filler ash (putty) of the paint surface had to be thoroughly dried in a dry environment before it could enter the paint booth for painting.

The air hose connected to the painting gun must be kept dry and no moisture is allowed. The above points are also important reasons for the blistering of automobile paint.

3. If the paint is sprayed too thickly, the spraying layer of the paint is not paid more attention or the technology of the construction personnel is limited, it will often lead to the overall thickness of the paint being too thick and the paint body flowing down. In addition, if the post-grinding treatment is not good, bubbles will appear on the paint surface in the future.

There are many factors that cause the blistering of the paint, which may be caused by rust inside the paint, but the specific factor is caused by the moisture on the surface of the coating and the urgent spray paint. If the paint layer has water vapor in the paint layer, it is difficult to volatilize, and then it is harmed by high temperature, and the water vapor at the bottom layer will surge, and the topcoat layer is partially compressed and causes bulging.

In addition, blistering of car paint may also be caused by the whole process of painting

1. The paint quality is not very good.

This kind of situation often occurs in the street shops outside, which usually have very low paint prices, because they are not very good in the quality of the paint, and there may be some problems after painting.

2. The construction conditions and the whole process are not serious and meticulous.

Painting must be good working conditions and a certain technicality, before the paint can not be stored a little moisture; The paint surface must make up the putty before painting, and then it must be completely dried under the condition of drying, so that it can enter the paint room to spray paint; The gas line connected to the paint gun must be kept dry and not allow any moisture. If you don't have the above aspects, it will lead to blistering of the car paint.

3. The paint is uneven.

If the paint is too thick and thick, it is likely to cause the paint to be dirty and blistering in the future; The spray paint is too thin and too thin, and it is easy to cause blistering or cracking of the paint surface after the wind blows gently and the sun and rain.

If you ignore it, the paint is likely to crack after a period of time, and precipitation will enter the area, causing the internal metal material to corrode, thereby expanding the total area of damage and destroying the car body. Therefore, once you find that the car paint is blistered, you should go to the professional repair department or car 4S shop to find professional technicians to do a good job of maintenance, if the total area of blistering is very large, you should choose to paint again.

There are many reasons for blistering, first of all, the putty scraped on the car is caused by the rush to spray paint before it is completely dry! In addition, the iron plate of the car was broken when making sheet metal, and scraping putty without welding in time was also the cause of blistering! In addition, the primer that you spray before you spray the topcoat will cause blistering if it is not cleaned or reacts!

There are many reasons that can cause blistering, such as the poor quality of putty, or the air is too humid when painting, the ratio of paint is incorrect, and the place to be sprayed is not covered completely exposed to the insignificant corners, many, many reasons.

There could be several reasons for this:

The first is that the construction environment is not good, the airtight is not good, and there is water mist falling on the surface of the paint during the construction process;

The second is that there is a problem with the oil-water separator, and there is water in the spray gun;

The third is that the paint is misted during the drying process.

If it can be solved by polishing after painting, it needs to be re-sprayed if it can't be solved by polishing.