What is the reason for the surface of car paint?

The paint bulges, there may be a quality problem with the paint, or it may be in the process of repairing the paint, the primer is sprayed before it dries, and there is moisture between the topcoat and the putty, and if it is evaporated by high temperature, air will appear, resulting in the paint bulging; In addition, it may also be caused by rust caused by moisture in the metal area under the paint. If the paint bulging is not dealt with in time, not to mention the impact on the appearance, the bulging area will slowly expand, and finally lead to the paint cracking and falling, which will damage the body, repair trouble, and expensive.

In addition, the car paint bulge should be removed from the bulge paint surface, do anti-rust treatment, then fill the putty, and then wait for the putty to dry thoroughly, then polish and flatten, and finally spray the car paint. If there is a bulge in the car paint, the quality of the car paint or the operation of the paint repair, you can make a claim, it is best to go to a regular professional repair shop or 4S shop for appraisal and find a professional to deal with it.

What are the reasons for the coating on the surface of the automobile paint: 1. Cause analysis: After the dissection and analysis of the blistering parts of the top paint, the blistering layer is all coated above the DAO.

Only the topcoat film blistered, and the middle coating did not find any blistering. The main reason is that the sealing ability of the primer is relatively poor, even if there is water vapor in the primer and primer film, it can volatilize through the micropores of the paint film. The paint film of the topcoat layer is relatively closed, especially after the complete reaction of the two-component paint, if the paint film contains water vapor, it cannot volatilize, and the topcoat film is locally stressed and produces bubbling phenomenon due to the action of weather temperature and bottom water vapor expansion.

2. The seasonality of rice grain lacquer bubbles is more obvious, and most of them occur.

In July and August, it is rainy and humid, and because the air contains a lot of moisture during this season, even in the paint booth, sometimes the humidity is greater than 70. When spraying paint, sometimes the surface of the coated object is ground by water, it is difficult to volatilize the water completely, if the paint is sprayed on the surface containing water, due to the relatively small amount of water vapor, it is distributed in a fog on the surface of the object. In the process of paint covering and film formation, water vapor can volatilize away with the volatilization of solvent, after drying, the paint film is closed to the water vapor, and the water vapor left under the paint film encounters climate change, and the water vapor at the lower part of the paint film expands, and the paint film will be jacked up, and the paint bubble is formed, which generally takes 3-5 days.

3. Summary: To sum up, the main reason for the occurrence of topcoat rice-grained paint bubbles is that the surface of the coated object contains water.

<><What are the reasons for swollen car paintAs the age of the vehicle increases, the car paint may also bulge. So the question is, what are the reasons for the bulging paint?

1. The reason why the paint will bulge is usually caused by the fact that the paint is not treated with anti-rust treatment when the sheet metal is made, and if there is oil or dust on the putty on the paint leakage during the sheet metal, the vehicle is very prone to bulging at this time in a high temperature state; If the owner's vehicle is under warranty at this time, the owner has the right to ask the staff of the 4S shop to repair it free of charge.

2. It may also be that the metal part under the paint is rusty in a humid environment, resulting in bulging in this position; If this is the case, the owner needs to remove the paint surface of the bulge position, then do an anti-rust treatment, and then apply putty, wait for the putty to dry, and then polish the bulge position, and finally spray the car paint.

Summary. Hello, I have seen your inquiry, please wait for a moment and answer it for you immediately.

Hello, I have seen your inquiry, please wait for a moment and answer it for you immediately.

Is it normal for a 4-year-old car to be painted and bulging.

If the car paint is the original paint, this phenomenon may be due to the quality of the car paint, or this. Evaporation at high temperatures during the painting process. There is also the following ruin, teasing, rust prevention is not done.

Or if there are other things in this position of the paint surface, this phenomenon will also appear.

Then can I find a 4S shop for compensation?

This is a 45w Lincoln Continental.

It has been 4 years, and this warranty that has exceeded the warranty period of the blind selling beam is three years or 100,000 kilometers. In addition, the warranty time of this paint is relatively short, and the paint warranty of the vehicle is only one year under normal circumstances.

That is to say, no matter what the model, the warranty time of the vehicle's paint is very short. The general warranty is only one year.

So is it normal?

According to the normal 4 years, there will not be this kind of talk slippery like a ruler, but this has exceeded the warranty period, if you look for a 4S store, the 4S store has no way to claim for you.

At that time, when I bought a new car, I felt that the paint of the rear cover of this car was a bit wrong in the import, and I could go to ** to identify it.

Now I can't recognize the 4S store.

In this case, you will need to contact your business administration. Let someone from the business administration department help you contact this appraisal company.

It's been 4 years since the appraisal is made, and the 4S store will definitely not admit it.

Taiyuan Search Pingyang Automobile Network] Yes. The paint is bulging, it means that the body sheet metal is not done to prevent rust, which is a quality problem, if the vehicle is in the warranty period, you can go to the after-sales service to claim for replacement of new body sheet metal parts. Usually there is oil or dust on the scraped putty, and the paint molecules are not completely attached to the surface of the putty, and the air between the paint and the putty expands after the paint is dried at high temperature.

The general car paint bulge is usually scraped putty with oil or dust on it, and the paint molecules are not completely attached to the surface of the putty. This can only be sanded off and repainted.

The paint is bulging, it means that the body sheet metal is not done to prevent rust, which is a quality problem, if the vehicle is in the warranty period, you can go to the after-sales service to claim for replacement of new body sheet metal parts. Repainting only slows down the environmental conditions of rust. Bridge crack dress is just an outward form of protection.

Rust is because there is oxygen, and painting is to isolate oxygen, so it will not rust.

But lacquer is an external form that will not solve the problem of rust on the inside. Causes of rust: 1

and use of materials in relation to. In the selection of steel plates, car companies with a little conscience use double-sided galvanized sheets, while some car companies use cold-rolled sheets in order to save costs. That's why some cars won't rust even if they make a cut and leak out of the iron plate, while some cars bulge on their own after three or four years.

2.Caused by processing technology. In order to simplify the process and reduce costs, some car companies adopt a separate painting process in the subsequent installation of parts.

For example, before entering the spraying workshop, the door and the front and rear covers have been assembled, if there is something that is easy to rust before the assembly, due to the compression of the fitting surface, all kinds of cleaning processes have not been able to get out the dirty things inside, thus burying the hidden danger of the car paint bulging. (Photo by Chen Jie 2).

Yes, if the drum is covered by a hidden chain, it means that the body sheet metal is not properly rusted, which is a quality problem. If the whole vehicle is within the warranty period, you can claim a new body sheet metal after sale. Usually the scraped putty has oil or dust on it, and the paint molecules are not completely attached to the surface of the putty.

After the paint is dried, it is baked at high temperature, and the air between the paint and the putty expands with the embedded.

Generally, the paint bulge is usually caused by the oil or dust on the scraped putty, the paint molecules are not completely attached to the surface of the putty, and the air between the paint and the putty expands after the paint is baked and dried at high temperature. This can only be sanded off and repainted. If the drum is covered, it means that the body sheet metal is not properly corroded, which is a quality problem.

If the whole vehicle is within the warranty period, you can claim a new body sheet metal after sale. Repainting is only done to slow down the rusty environment. Just an external form of protection.

Rust is because of oxygen, spray paint, is to isolate oxygen, will not rust. But paint is an external form and will not solve the problem of rust on the inside. Causes of rust:

1。and use of materials in relation to. In the selection of steel plates, car companies with a little conscience use double-sided galvanized sheets, while some car companies use cold-rolled plates in order to save costs.

That's why some cars won't rust even if they cut a hole, even if the iron plate leaks out, and some cars will talk about their own bags after three or four years. 2.Due to processing technology.

In order to simplify the process and reduce costs, some car companies use a separate painting process in the parts to be installed in the later stage. For example, before entering the paint shop, the door and the front and rear covers are already assembled. If there is something that is easy to rust before assembly, various cleaning processes cannot get out the dirty things due to the extrusion of the joint surface, thus burying the hidden danger of car paint bulging.

Millions of car purchase subsidies.