BONDIT GREY Aquarium Sealant, provided in a 310ml tube, is a high-quality, versatile adhesive specifically designed for aquarium use, offering robust waterproof bonding. The grey colour of the sealant allows for a discreet and professional finish, particularly suitable for use in aquariums with darker substrates or backgrounds. This sealant is safe for aquatic life, cures to form a strong, flexible seal, and is resistant to both freshwater and saltwater environments, ensuring long-lasting durability and integrity in aquarium construction and repairs.