What is the function of automotive varnish?

[SanElliott]

Varnish is a layer of transparent protective paint sprayed on top of the primer and topcoat, also known as clear coat. In addition to making the paint surface shiny, the clear coat provides excellent protection for both the primer and topcoat. Varnish, also called vanish, is a type of paint that does not contain coloring substances. It is composed of resin as the main film-forming material along with solvents. The colorless and transparent characteristics of varnish allow items coated with it to retain their original texture, forming a smooth film after drying. Below are specific details about varnish: 1. Composition: Clear coat is a synthetic resin made from base materials and additives, containing no pigments. The earliest varnish was tung oil, which people used to apply on wooden products for waterproofing and protection. Later, it was applied in construction and art fields, as the varnish film is very shiny after drying. 2. Function: The main function of clear coat is to protect the car, with its wear resistance and hardness far exceeding other protective transparent paints.