Aquarium Sealant
Our aquarium sealant is a high-purity 100% silicone designed specifically for aquariums and water-containing structures. This silicone contains no fungicides or harmful additives, ensuring it is completely non-toxic and safe for fish after curing.With excellent adhesion to glass and outstanding waterproof performance, this fish tank silicone sealant delivers long-lasting, leak-proof protection for both new builds and repairs.
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Key Features of Aquarium Sealant
- Fish Safe & Non-Toxic
Formulated as aquarium safe silicone, ensuring no harm to aquatic life after full cure - 100% Pure Silicone Formula
No solvents, no shrinkage, no cracking over time - Strong Glass Adhesion
Ideal for glass-to-glass bonding in aquariums and tanks - Waterproof & Leak-Proof
Prevents leaks in continuous water exposure environments - Durable & Long-Lasting
Resistant to aging, UV, and moisture
Applications of Aquarium Silicone Sealant
- Aquarium construction and assembly
- Fish tank leak repair
- Glass bonding and sealing
- Terrariums and reptile enclosures
- Water tanks and glass containers
Technical Specifications
- Type: Acetoxy Cure Silicone
- Color: Clear / Black
- Skin Time: 5–10 minutes
- Full Cure: 24–48 hours
- Temperature Resistance: -40°C to +180°C
- Shelf Life: 12 months
Why Choose Our Aquarium Sealant
As an experienced manufacturer of aquarium silicone, we offer:
- Strict quality control for safety and consistency
- OEM & private label service
- Competitive factory pricing
- Stable supply for bulk orders
- Export-ready packaging and documentation
Packaging Options
- 280ml / 300ml cartridge
- 590ml sausage
- Custom branding available
How to apply sealant:
1. Surface Preparation: The Decisive Step
The success of your project depends on cleanliness. Any residue will cause the aquarium sealant to fail.
Remove Old Residue: Scrape away every trace of old silicone. Never apply new sealant over old material.
Deep Clean: Wipe glass edges with alcohol or acetone until the cloth comes away spotless.
Stay Dry: Ensure all surfaces are 100% moisture-free.
Use Masking Tape: Apply tape along the joint edges to ensure a straight line and protect the glass from excess mess.
2. Application and Smoothing
Proper technique ensures the aquarium sealant penetrates deep into the joints.
Cut the Nozzle: Cut at a 45 angle. The opening should be slightly wider than the joint.
Apply Evenly: Use a caulking gun to “push” the sealant into the gap. Maintain a steady speed to avoid air bubbles or breaks.
Smooth the Joint: Use a gloved finger or scraper dipped in soapy water to press the sealant into the seam. Aim for a concave curve; this shape better disperses water pressure.
Peel Tape Early: Remove masking tape immediately after smoothing while the sealant is still wet.
3. Curing and Leak Testing
Patience is vital for structural integrity.
Curing Time: Let the aquarium sealant sit in a ventilated area. While it skins over in 48 hours, it requires 3 days to reach maximum strength. Do not move the tank during this time.
Water Test: Once fully cured, fill the aquarium slowly with water.
Observation: Leave the tank full for at least 24 hours. Check all seams and the bottom for dampness.
Mirror silicone
weatherproof sealant
