VGS067 Black Silicone Sealant - Heavy Duty Structural Glass Adhesive for Large Aquariums & Construction Projects - Waterproof, Industrial Grade, UV Resistant - 10.15 fl oz Per Tube(4 Pack)

Build with Confidence: VIKAGU Professional Black Structural Silicone Whether you are a professional aquarium builder, a glazier, or a DIY enthusiast, the integrity of your seal is paramount. VIKAGU VGS067 is a high-performance, acidic-cure silicone sealant designed to deliver industrial-grade bonding strength with aquarium-safe purity. Why Choose VKAGU Black Silicone? The "Invisible" Seam: The rich black color creates a visual frame for your aquatic landscape and hides unsightly algae or debris that often mars clear silicone over time. Built for Pressure: Formulated to resist the immense hydrostatic pressure of large water volumes. It is not just a sealer; it is a structural adhesive. Versatile Application: While dedicated to fish tanks, its robust properties make it perfect for sealing skylights, installing glass display cabinets, and repairing marine windows. Technical Specifications: Color: Black Type: Acidic (Acetoxy) Cure Capacity: 300ml (10.15 fl oz) - Fits standard caulking guns Skin Time: 10-20 minutes Full Cure Time: 24 hours (Allow 48 hours for large tanks before filling with water) Temperature Resistance: Remains flexible in hot and cold environments Important Usage Guidelines (Please Read): Compatibility: Best for Glass, Glazed Ceramics, and Aluminum. Not recommended for cement, concrete, marble (porous stones), or bare metals like copper/brass/zinc (due to acidic cure nature). Not recommended for Acrylic/Plexiglass tanks (poor adhesion). Preparation: Surfaces must be clean, dry, and free of old sealant or grease. Use a razor blade and rubbing alcohol for preparation. Safety: Releases a vinegar-like scent during curing (acetic acid). Use in a well-ventilated area. The smell disappears completely once cured.

• AQUARIUM SAFE & NON-TOXIC FORMULA – Engineered specifically for aquatic environments. Once fully cured, this solvent-free silicone is 100% safe for fresh and saltwater fish, coral reefs, and sensitive plants. It creates a chemically stable environment without leaching harmful residues, making it ideal for tank construction and vivariums
• INDUSTRIAL STRUCTURAL STRENGTH – Designed for professional glaziers and heavy-duty applications. This sealant provides superior tensile strength and adhesion to glass surfaces, capable of withstanding high water pressure in large aquariums (up to hundreds of gallons) without cracking, shrinking, or peeling over time
• SLEEK BLACK FINISH FOR AESTHETICS – The deep, UV-stable black color blends seamlessly with modern black tank frames, background liners, and dark display cases. It effectively hides algae growth along the seams and provides a clean, professional outline for custom glass projects and luxury reptile enclosures
• RAPID CURING ACIDIC SYSTEM – Features a fast-acting acetoxy cure specifically for glass-to-glass bonding. It skins over in 10-20 minutes and cures rapidly, allowing professionals and DIYers to complete projects efficiently. Provides an immediate, aggressive tack that holds heavy glass panels firmly in place during assembly
• PERMANENT WEATHERPROOF SEAL – Beyond aquariums, this versatile adhesive is excellent for sealing drafty windows, shower enclosures, and marine glass repairs. It remains permanently flexible and waterproof, resisting temperature extremes, vibration, and continuous water immersion for years of reliable performance