New researches or discoveries are regularly published in the field of nanotechnologies, revealing information about the new materials with unique properties and methods to achieve this. Wood veneer is often used in different real estate segments for interior decoration applications. It's ideal for residential projects as well as in hotel projects and offices; the result is a unique look and feel for the interior. Even more, veneer is processed to create also a variety of products such as veneer parquet, flexible veneer sheets, wood veneer boards, wood veneer wallpaper, etc. A disadvantage can be mentioned, veneered surfaces could to a greater or lesser degree change color, particular upon exposure to natural and artificial light. The level of color change depends on such factors as the species chosen, the coating type used and intensity and period of the exposure to light. In addition, conventional finishes have a tendency to yellow with age that can have negative effects on the original color of the selected timber. To minimize previously mentioned effects new finishes have to be developed. Invisible nanolevel coating based on the sol-gel process for veneer finish is offered in this paper. The sol–gel technique is an industrial process for colloidal nanoparticles generation from liquid phase, where the deeper development has been performed in last years for the production of advanced coatings. It is well adapted for oxide nanoparticles and composites synthesis. The main advantages of sol-gel techniques are comparable low processing temperatures offering unique opportunities for access to the organic and inorganic materials. In the paper there will be discussed the sol synthesis and application technology as well protective properties of coating. Leaf trees wood has a lot of good economic, technological, physical and mechanical properties, but under influences of external environment (rain, sun, wind, the rapid change in temperature) it fails to maintain and preserve all complex of properties , so it is essential to develop nano-coatings, capable natural material make durable and sustainable usage in outdoor spaces with increased moisture content.