Seachem Silicone Sealant is a high-grade 100% RTV silicone sealant designed to seal and repair both freshwater and saltwater aquariums. The formula creates a permanently watertight and flexible seal with high tensile strength that will not crack, dissolve, or shrink from pressure or stress caused by the weight of the water in your tank. The solution provides unrivaled adhesion and boasts a black color in a 3 oz tube.
