What Color is Automotive Primer?

[LuciaAnn]

Automotive primer colors vary depending on the vehicle. Some are gray, some are black, and others may be different colors. Primers can generally be categorized into dip primers, water-based dip primers, anodic electrodeposition primers, and cathodic electrodeposition primers. Most passenger cars use cathodic electrodeposition primers, which are typically white or gray, with the specific color chosen based on the vehicle model. Generally, black cars use white primer, while white cars use gray primer, primarily to make the primer easily identifiable when the paint is scratched. The primer is designed to have excellent adhesion to the substrate, good compatibility with intermediate or topcoats, and must also provide strong corrosion resistance, rust prevention, oil resistance, chemical resistance, and water resistance.