What are the common colors of automotive primer?

[HarrisonLynn]

Automotive primer is generally black, white, or gray, with gray being the most commonly used in vehicles. If the primer becomes exposed, it requires repair. The extent of damage should be assessed—if the primer is not scraped off, a surface paint repair will suffice. However, if the primer is damaged, maintenance is necessary, as neglecting it may lead to rust on the car body. Solvent-based automotive primers primarily use nitrocellulose resin, epoxy resin, alkyd resin, amino resin, or phenolic resin as base materials. Pigments such as iron oxide red, titanium white, carbon black, and other fillers are used. The application methods include spraying and dipping.