What is the Difference Between Touch-up Painting and Spray Painting?

[MadelineLee]

Spray painting and touch-up painting differ in the following aspects: Process Differences: The processes and material selection principles for the two methods vary. Original factory paint is suitable for high-temperature baking in assembly lines. When using original factory paint for repairs, it is important to note that the paint may not dry properly if the required cross-linking and film-forming temperature is not reached. Original factory paint requires the coating thickness to meet quality standards, whereas during vehicle repairs, thickness measurement is rarely checked with a thickness gauge, which should not be overlooked. Material Differences: The painting process and materials used for automotive plastic body parts also differ and require careful distinction. Automotive touch-up paint often cannot meet the process requirements of original factory coatings. Therefore, the two should not be used interchangeably arbitrarily. Even when performing repairs on the original factory painting line, original factory paint is generally not used; instead, automotive touch-up paint is more commonly chosen.