The Basisplus-stains are ecological, water-based stains which are produced using dyesand pigments, resistant to light and UV-rayes. By these (UV-)light resistant pigments, sunlight does not effect the colour of the parquet. By reacting with the tannic acid, the wood obtains a unique aging effect which highlights the grains and wood structure beautifully. The aging effect is just like the natural aging of wood, especially with dark growth rings onresinouswoodsandthepatinationof hardwood.