Is the repair mark obvious when using a touch-up pen?

[StHailey]

Using a touch-up pen to repair car paint scratches can yield decent results, but there will still be some color difference. Additional information is as follows: 1. Paint may peel off: There is indeed a possibility of paint peeling when using a touch-up pen for repairs. This is because the paint coating process used in car manufacturing is far more complex than simple application—not only are the paint materials different, but the coating process is also very rigorous. Many vehicles require high-temperature baking to dry the paint film. The higher cost of repairs at a 4S shop is due to the use of original factory paint and an attempt to mimic the coating process, ensuring better paint fusion and preventing subsequent peeling. If a touch-up pen is used directly, peeling may occur, especially if the steps are incorrect—such as failing to clean the car surface, applying too much paint, or exposing the car to excessive heat. The paint may peel off, and the car could later develop rust. 2. Limited application area: The repair effect of a touch-up pen is also quite limited, suitable only for very small and minor scratches. For car owners who want to avoid peeling, self-spray paint can be a better option. The advantage of self-spray paint is that it can evenly cover the car surface. When applying, maintain a slightly greater distance and use multiple layers until the new paint blends seamlessly with the original car paint, thus preventing peeling.