Structural Silicone Sealant – Waterproof, UV-Resistant, Fast Cure

All-Purpose Structural Silicone Sealant – Waterproof, UV-Resistant & Fast-Curing

Whether you're sealing a modern glass façade, reinforcing aluminum curtain walls, or weatherproofing a sunroom, this high-performance structural silicone sealant delivers a professional-grade bond that lasts. Engineered for both commercial and residential construction applications, it combines superior adhesion strength with outstanding flexibility and weather durability — all in one easy-to-apply formula.

Made in Mainland China.

Key Features

• Superior Structural Bonding Strength: Specifically formulated for high-strength structural attachment of glass, metal, aluminum, and other building components. Ideal for curtain walls, glass facades, and framing systems.
• Waterproof & Leak-Proof Sealing: Creates a permanent, airtight, watertight barrier that protects interiors from moisture intrusion even under heavy rainfall or prolonged water exposure.
• Extreme-Weather Resistance: Maintains full performance across a wide temperature range, standing up to scorching heat, freezing cold, and harsh environmental conditions without cracking, shrinking, or losing adhesion.
• Excellent UV Protection: Resists ultraviolet radiation to prevent yellowing, chalking, or degradation over time — keeping your seals looking clean and performing reliably for years.
• Neutral-Curing Formula: Non-corrosive chemistry is safe for use on sensitive coated glass, anodized aluminum, stone, and other delicate substrates — no risk of surface staining or material damage.
• Fast Curing & Easy Application: Skins over quickly for efficient job-site workflows. Smooth application from a standard caulk gun makes it accessible for both professionals and confident DIYers.
• Long-Lasting Elasticity: Retains flexible, elastic properties through years of thermal expansion and contraction cycles, reducing the need for frequent re-sealing or maintenance.

Ideal Applications

• Commercial skyscraper exteriors & curtain wall systems
• Modern glass façade construction
• Residential sunrooms, conservatories & greenhouses
• Industrial aluminum panel & veneer sealing
• Window and door frame reinforcement
• Aluminum alloy frame bonding

Product Details

• Type: Structural Silicone Sealant (Neutral-Curing)
• Net Weight: 750g / 500g (variant)
• Package Contents: 1× All-Purpose Structural Silicone Sealant

Application Tips

1. Ensure all surfaces are clean, dry, and free of dust, grease, or old sealant residue before applying.
2. Cut the nozzle tip to your desired bead width and load the cartridge into a standard caulk gun.
3. Apply a continuous, even bead along the joint or seam.
4. Smooth the bead with a wetted tool or finger within a few minutes of application.
5. Allow full cure before exposing the joint to water or load stress. Refer to packaging for cure time at your temperature and humidity.

Notice:
• Actual color may vary slightly from images due to lighting differences.
• Please allow 1–3 cm measurement tolerance due to manual measurement methods.

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For guidance on safe use of construction adhesives and sealants, refer to the U.S. Consumer Product Safety Commission (CPSC) and OSHA's chemical safety resources for best practices when working with construction chemicals.

Frequently Asked Questions

Q: What surfaces is this structural silicone sealant compatible with?

A: This sealant is compatible with glass, aluminum (including anodized and coated aluminum), metal alloy frames, coated glass panels, stone, and most common construction substrates. Its neutral-curing formula makes it safe for sensitive surfaces that could be damaged by acidic or basic sealants.

Q: How long does this structural silicone sealant take to cure?

A: The sealant skins over rapidly after application for fast handling. Full structural cure time depends on bead thickness, ambient temperature, and humidity levels. In typical conditions (around 23°C / 50% relative humidity), full cure is generally achieved within 24–48 hours. Avoid stress or water contact until fully cured.

Q: Can this sealant be used outdoors on glass façades and curtain walls?

A: Yes. This product is specifically engineered for exterior structural glazing and curtain wall applications. Its extreme-weather resistance, UV protection, and waterproof formula make it an excellent choice for commercial glass facades, skyscraper exteriors, sunrooms, and industrial aluminum panel sealing.

Q: Is this product safe to use on coated or tinted glass?

A: Yes. The neutral-curing formula is non-corrosive and non-staining, making it safe for use on coated, tinted, and low-e glass surfaces where acidic sealants could cause damage or discoloration.

Q: How much sealant do I get per cartridge?

A: This sealant is available in 500g and 750g cartridge sizes. Choose the size best suited to your project scope — the 750g option is ideal for larger commercial jobs, while the 500g is great for residential and smaller-scale applications.