1 In recent times, coatings imparting a "natural look" (although often such natural look is "corrected" or "enhanced" by the right stains) have become very popular, and have, consequently, improved constantly in quality. The authenticity of the "uncoated wood" look, its conservation over time, and the general protection properties of the coating have all improved thanks to the skill of paint formulators and the availability of new raw materials. New generations of resins yield coatings that do not turn the substrate colour either toward the grey or purplish - as it is still usual for latexes, depending on the perfection ...