Why doesn't epoxy resin need a protective surface finish?

Epoxy resin is inherently durable and provides a smooth, glossy finish that is resistant to moisture, chemicals, and UV light. Its strong adhesion properties and ability to cure into a hard, non-porous surface eliminate the need for additional protective coatings in many applications. Additionally, epoxy's resistance to yellowing and scratching makes it suitable for use in various environments without compromising its appearance or integrity. However, for specific applications or aesthetic preferences, a surface finish may still be applied.