Product based on oligomeric siloxanes and additives diluted in an inert solvent mixture.

The product is characterized by a low viscosity which allows excellent penetration into the material to be treated, giving it outstanding water-repellent properties which prevent water and salts/pollutants dissolved in it (responsible for stone degradation) from penetrating inside. The protective action of BIO PT 15 does not modify the breathability of the support and does not decrease its permeability to water vapour, it does not modify the chromatic aspect of the treated materials and it has a high resistance to UV rays.