AQUARIUM-SAFE & NON-TOXIC: Made from 100% silicone polymer, Bigrizy Guard waterproof silicone sealant is completely safe for fish, plants, and other aquatic life. Complies with ISO 11600 – F & G – 25 LM standards. It is free from solvents, fungicides, and harmful additives, ensuring a safe and non-toxic environment in both freshwater and saltwater aquariums.

STRONG ADHESIVE & HIGH FLEXIBILITY: Formulated as an acetoxy silicone sealant, it provides excellent adhesion to glass and other non-porous surfaces such as aluminum and glazed tiles. This 100% silicone caulk creates a permanent, flexible, crack-free seal that resists shrinking or pulling, even under temperature changes.

FAST CURING & EASY TO APPLY: Bigrizy Guard aquarium silicone glue offers a quick cure time, drying to the touch within hours and reaching full cure in 24 hours. Compatible with standard caulking guns for smooth, precise application. The recommended application temperature for black silicone caulk is between 41°F and 104°F.

DURABLE – OZONE & UV RESISTANT: Engineered for long-term use, Bigrizy Guard aquarium silicone adhesive is ozone resistant, UV resistant, and waterproof. This aquarium sealant maintains high elasticity under high and low temperatures, ensuring a leak-free, long-lasting aquarium seal.

MULTIPURPOSE AQUARIUM SILICONE: Ideal for building and repairing fish tanks, sealing seams, stopping leaks, and securing decorations. Can also be used for terrariums, vivariums, and glass bonding applications, making it a versatile, professional-grade black silicone sealant.