The treatment is carried out with OSMO impregnation oils according to the chosen shade. They are made on the basis of natural oils and waxes. They protect the wood from the inside and outside, do not create a film, but create a protective surface with open pores, thanks to which the wood can breathe. Osmo coatings can be easily renovated even locally. They do not chip, crack or peel. They create a perfect wood surface with good resistance.