The etching treatments have the advantage of enhancing some specific characteristics of the tables such as color, grains design and material tactility. Brushing acts directly on the wood grain and it consists in removing from the surface of the boards the softer, thanks to the use of steel brushes. In this way, making it slightly uneven surface has the advantage of hiding signs of aging of your wooden floor. The treatment consists in the pre-polished smooth or sanding of the tables up to make the surface of the parquet completely smooth to the touch, in this way the finish is glossier and more sensitive. Materials that arequire less brushing, being very hard materials, are Walnut, Afrormosia and Cabreuva.