It is a 100% silicone that does not contain chemicals that can harm fish and other living creatures living in the aquarium, used in aquarium manufacturing and glass bonding works.
Features
_ 100% Silicone, solvent-free
_ Does not harm fish and other living creatures
_ Does not crack, shrink, or change color
_ Dries fast
Areas of Application
_ For bonding, sealing, and repair in aquariums
_ In the assembly and manufacturing of glass structures