Transparent siloxane-based joint waterproofing liquid. It protects the surface of grout joints (tiles, granites, glass blocks, etc.) from moisture and stain absorption, resulting in the preservation of their strength and color. It seals capillary cracks in grout joints that appear due to temperature fluctuations or sudden dehydration during grouting. In indoor areas (e.g., bathroom, kitchen), it 'prevents' moisture absorption and thus the appearance of mold, while in outdoor areas, it 'prevents' the detachment of tiles that may be caused by frost. Its water repellency is maintained for 2 years outdoors and for 5 years indoors.