PRO JOINT is a deep treatment, a milky nano-technology solution with strong water-repellent, oil-repellent and hardening properties. Once dry, PRO JOINT is colorless, limiting water infiltration, preventing the absorption of stains, thoroughly hardening friable joints, and neutralizing the mineral colors of the joints. The problem of moisture infiltrating through the wall of the tile joints as well as the singular junction of the joints between the floor and the wall is the major factor in the following pathological symptoms: - Friability and deterioration of the joints - encrustation of dirt - Detachment of tiles - Peeling off of wall paint - Saltpeter and mold on the surface - Capillary rise on junction wall