Impregnation for masonry that inactivates salts. Thanks to its special composition, ISOMAT ST-1 transforms water-soluble salts (chlorides and sulfates) into insoluble ones.
It is used for the restoration of salt-damaged masonry in combination with the renovation render MARMOCRET-SP. ISOMAT ST-1 transforms water-soluble salts into insoluble ones, preventing their ingress into the wet, not yet hydrophobic restoration render. Therefore, after drying, the restoration render provides the masonry with the necessary protection from salts.
The substrate must be firm, free of dust, loose particles, etc. Remove contaminated and destroyed render at least 80 cm around the damaged areas. Scrape out the damaged masonry joints to e depth of 2 cm. Sweep the surface thoroughly with a metal broom. The areas to be treated must be dry and clean. Impregnate ISOMAT ST-1 deeply into the exposed masonry by brushing once or twice, depending on the salt damage and the absorbency of the masonry.