What is paint on a car called?

Paint on a car is called by several different names depending on the layer and context. The overall system is called automotive paint, car paint, or automotive finish. The individual layers have specific names. The first layer over bare metal is called primer or etch primer, which promotes adhesion and prevents rust. Over that is the basecoat or color coat, which provides the actual color you see, like red, blue, or black. Many modern cars have a mid-coat for pearl or metallic effects. The final clear, glossy layer is called clearcoat or clear coat, which provides shine, UV protection, and scratch resistance. Together, these layers are called the paint system or paint job. In body shops, the process of painting a car is called refinishing, respray, or recoat. Factory paint is often called OEM finish, while aftermarket paint is called custom paint or aftermarket finish. Special finishes have names like metallic paint, pearl paint, tri-coat, matte finish, satin finish, and candy paint. The thick, textured protective coating underneath the car is called undercoating or chip guard. So while people just say car paint, professionals refer to it as basecoat clearcoat system or two-stage paint.