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Ensure your aquarium is perfectly secure and watertight with Seachem Aquarium Sealant – the professional-grade, 100% RTV Silicone specifically engineered for sealing and repairing aquariums! This isn't just any sealant; it's meticulously formulated to provide superior adhesion, exceptional tensile strength, and permanent flexibility, giving you ultimate confidence in your tank's integrity.
Whether you're building a new aquarium, performing a major repair, or simply resealing an older tank, Seachem Aquarium Sealant creates a durable, waterproof bond that stands the test of time. Crucially, it is absolutely safe for aquatic life in both freshwater and saltwater environments once cured, ensuring a healthy and secure habitat for your cherished inhabitants.
100% RTV Silicone: A high-quality, pure Room Temperature Vulcanizing (RTV) silicone formula, essential for safe and reliable aquarium construction and repair.
Superior Adhesion & Tensile Strength: Creates incredibly strong bonds between glass and other non-porous materials, ensuring a robust and long-lasting seal.
Permanent Flexibility: Maintains elasticity permanently, allowing the sealant to withstand the natural movements and pressures of a filled aquarium without cracking or losing integrity.
Watertight Seal: Cures to form a completely waterproof and durable barrier, preventing leaks and ensuring the safety of your aquatic setup.
Aquatic Life Safe: Once fully cured, the sealant is non-toxic and entirely safe for all fish, invertebrates, and plants in both freshwater and marine aquariums.
Versatile Application: Ideal for constructing new aquariums, resealing old tanks, repairing leaks, or securing internal fixtures.
Clear Finish: Dries to a clear, discreet finish that won't detract from the aesthetics of your aquarium.
Easy to Apply: Designed for smooth application with a standard caulking gun (not included).
Seachem Aquarium Sealant is ideal for all aquarium hobbyists, from DIY enthusiasts to seasoned professionals, who need to build, repair, or reseal glass aquariums. It's an essential tool for ensuring a secure, leak-free, and safe aquatic environment for both freshwater and saltwater setups.
Need help with placing an order, delivery, or something else? Start with our Help Page — or message us anytime for support.