Wood has a beauty of its own that a good varnish should enhance, as well as protect. Most wood varnishes are designed to protect against man-made damage including oil, detergent and alcohol spills. However, varnishes designed for boats & yachts also need to provide a protective barrier against the natural elements: sea, wind, rain and UV radiation from the sun will attack exposed surfaces. In paint products, some protection is offered from the color pigments used in the paint formulation. However, in clear varnishes no pigment exists. Wood treatments and boat varnish provide extra protection in other ways.