Varnish

In printing, a varnish finish refers to the application of a clear coating or varnish onto the surface of printed materials to enhance their appearance, protection, and durability. The varnish is a transparent or semi-transparent liquid that is applied as a thin layer over the printed surface, providing various benefits depending on the type of varnish used.
Varnish finishes are commonly used in various printed materials, including brochures, catalogs, packaging, book covers, business cards, and promotional materials.