Leaksil-99 is a 100% Reactive Organosilane Nano-Sealer When applied on a siliceous substrate, it penetrates up to 2 mm inside the substrate and becomes an integral part of the structure. It converts the nature of the substrate from hydrophilic to hydrophobic. Leaksil-99 is water dilutable, safe, sprayable and easy to apply. Leaksil-99 acts like a ‘skin’ up to 2 mm deep for your building as against a polymer or paint film that acts like a ‘Band-Aid” on your Building. The peel-off issues are eliminated as Leaksil-99 is non-leachable & UV-Resistant. It has a dual property of preventing of ingress of liquid water while allowing moisture vapours to escape.