What's the difference between painting in a 4S shop and painting in a repair shop outside?

The supporting equipment of 1.4s shop should be advanced, and it has advantages in paint mixing and color matching.

The quality of paint water in 2.4S shop will be better. If you are an imported car, you will be given the original imported paint or substitute imported paint when the 4S shop is not dark.

Technology:

1.4S shop paints more exquisitely than the repair shop outside. It is said that the employees outside the repair shop are unprofessional in painting, and now many repair shops are not bad. In order to improve efficiency and increase competitive advantage, they often support equipment similar to 4s stores.

In terms of price:

The paint in the 4S shop is more exquisite than that in the outside repair shop, but the price is also more expensive. If it only needs to be beautiful and of average quality, find a familiar repair shop to paint it.

Time:

If the owner cares more about the time, he can hand over the vehicle to the repair shop for painting, which is more efficient; When you hand it over to a 4s shop, you often have to make an appointment, and you have to wait for half a day or more.

Supplement:

Because the painting (touch-up and painting) of damaged car paint after leaving the factory belongs to touch-up, the painting process of touch-up is the same, whether it is a 4S shop, a repair shop or a special touch-up shop.

Although the process is the same, the construction requirements are different (paint quality, construction environment, attitude of trial construction, etc.). ) will affect the quality of painting.

Generally speaking, as long as the paint is used well, the construction is really responsible and the construction environment is good, the quality of the sprayed paint can be guaranteed, which has nothing to do with where to brush the paint.

Automobile painting refers to coating a layer of paint on the surface of the automobile to protect the automobile. Baking varnish is generally used for automobile painting. In the automobile factory, the frame and shell are welded, and the next process is painting. The forms are common paint, metallic paint and pearlescent paint. Automobile painting process: putty scraping, polishing and painting.

Automobile painting includes: ordinary paint; Metallic paint; Pearlescent paint; Varnish; Matte paint.

First of all, how did you get the original paint of the vehicle?

1, pretreatment

There are all kinds of oil stains, welding slag, dust and so on on the surface of the white body produced in the welding workshop. The pretreatment process is to treat these stains to make the car body meet the electrophoresis requirements. At the same time, the body-in-white is phosphatized to form a protective layer on the body surface, which increases the adhesion, corrosion resistance and moisture resistance of the paint film.

2. Electrophoresis

The process after pretreatment is electrophoresis. After electrophoresis, the primer layer is uniform and complete, which can be applied to the hidden interior of the car body structure, such as cavities and cracks, which is very helpful for corrosion protection. It is the most used and mature primer technology at present.

3. Preparation of intermediate coating

In order to improve the sealing and rust resistance of the car body, the joint surface of the car body panel needs to be coated with sealing material, and the car floor also needs to be coated.

4. Medium coating

Intermediate coating is one of the most important processes of automobile painting, which plays a connecting role: the lower layer is electrophoretic primer and the upper layer is body topcoat. The intermediate coating will improve the adhesion of the coating and the durability of the coating.

5. Top coat

The paint and varnish on the outermost layer of automobile are collectively called topcoat, and their functions are also different. Color paint brings colorful clothes to the car, shows the personality of the car, and protects the middle coat and electrophoretic primer. The varnish layer has the functions of anti-pollution, anti-acid rain and anti-ultraviolet, which can better protect the colored paint. The outermost layer of the car we can touch is the varnish layer.

6. Post-processing

After the topcoat is sprayed, it is dried, dried and cooled before entering the final quality inspection process for post-treatment. Generally, polishing wax is used to polish the automobile surface, which can make the topcoat have a soft and stable luster.

Pretreatment, electrophoresis, intermediate coating, material preparation, topcoat and post-treatment of the original paint require so many processes, but electrophoresis is something that 4s shops and repair shops can't do. They can only repair the top three layers, namely, the intermediate coating, the paint layer and the varnish layer.

Reference link: Baidu Encyclopedia _ Automobile Painting