What is the difference between a car maintenance 4S shop and a repair shop?

4S stores just have higher prices.

The difference between original paint and touch-up paint

Original paint:

As the name suggests, original paint is all the paint on the car when it leaves the factory.

First of all, let’s understand the structure of car paint: In the process of car body painting, different paints are used at different stages, and different paints form different paint layers. On the car body steel plate, there are four paint layers: electrophoresis layer, mid-coat layer, color paint layer and varnish layer. These four paint layers together constitute the car paint layer we see visually, which is what we usually see. It's the original paint.

Repair paint:

The paint repaired by 4S stores (or non-4S stores) after scratching is only equivalent to part of the mid-coat paint layer and varnish layer

This kind of paint is a high-temperature paint that needs to be baked at high temperatures of up to 170-190°C to achieve good adhesion and hardness.

It is impossible to meet the process requirements for spray painting and touch-up paint in 4S shops or repair shops. You can only choose low-temperature paint. This paint can dry in 2 hours and can be dried in 24 hours. The hardness reaches 80, and the ambient temperature of 60-70℃ is enough

Low-temperature paint cannot reach the same level of craftsmanship as the real original paint, but it is durable enough.

Compared with ordinary paint, some so-called original paints on the market are slightly more expensive. The only difference is that the paint suppliers are different. Maybe the paint company is different from the car manufacturer. Only when the manufacturer cooperates or cooperates with this store is it called "original paint".

In other words, compared with ordinary paint, the quality of so-called original paint (not real original paint) is actually not much different. The supply of paint is all outsourced, and similar products on the market The quality of paint manufacturers is pretty good. So you don’t need to worry too much when painting. The most important thing is to look at the painting process and craftsmanship of the 4S shop or repair shop.