What must the basecoat be covered with to ensure durability?

The basecoat must be covered with a clearcoat to ensure durability in automotive painting. The primary purpose of the clearcoat is to provide a protective layer over the basecoat, which contains the color and pigment. This protective layer enhances the overall finish by adding gloss and depth while also guarding against environmental elements such as UV rays, moisture, and chemicals that can cause fading and damage over time. Clearcoats also help to prevent scratching and chipping, further prolonging the aesthetic and structural integrity of the painted surface.

In contrast to sealants or primers, which serve different purposes in the painting process, the clearcoat is specifically designed to be the final layer in the paint system, forming a hard, protective barrier. While a second layer of basecoat may enhance color richness, it does not provide the same level of durability and protection as a clearcoat does.