All-Glass Aquarium Silicone Aquarium Sealant (3 oz.; Clear)

The same strength silicone used to manufacture new aquariums is now available for use at home. Includes twist-on easy nozzle for easy application of long-lasting bond. Permanently flexible and does not crack or shrink. Waterproof seal stops leaks. Non-toxic formula for use on fresh or saltwater aquariums. Sealant cures in five minutes and fully bonds within 24 hours.