Types of automobile painting:
Ordinary paint is the most common automobile paint, which first appeared. More than ten years ago, people came into contact with this kind of painted car. It is characterized by low cost and simple process, but its gloss is not very good, its surface hardness is not high, and it is particularly easy to scratch. So it is rarely used in cars, even if there are low-grade models, most of them are used in trucks and buses, but cars with this paint have more advantages in price.
Repair before painting:
For defects such as local corrosion and slight hard damage of body parts, if they are dug out and leveled, it will not be worth the loss. If it is directly filled with putty without repair, the strength and corrosion resistance are poor. Repair before painting aims at effectively making up for such defects.
Hand-grinding plane should be carried out with sandpaper pad on the hand template, and a large area should be replaced with larger grinding pieces, which not only saves labor but also improves the grinding quality of sand grinding. When grinding narrow edges and corners, smaller grinding blocks should be used, and when grinding contours or arcs, copying grinding blocks with similar shapes should be used.