Ultra‑Strong Weather‑Resistant Structural Silicone Sealant – High‑Strength, UV & Waterproof for Exterior Walls and Glass Curtain Walls
Feature
- Our one-part neutral-cure RTV silicone sealant features efficient and stable curing.
- Non-corrosive to all bonded substrates, it ensures safe and universal application.
- With excellent UV, high-temperature and humidity resistance, it provides long-lasting durability even under harsh conditions.
- When fully cured, it performs reliably within a wide temperature range of -50°C to 180°C.
- It allows for joint movement of up to 25% expansion and contraction, preserving the long-term structural integrity of assemblies.
Basic Uses
- This structural silicone sealant is specially designed for sealing and bonding curtain walls, aluminum/terracotta cladding panels and steel structures in high-rise buildings.
- It ensures reliable and secure structural fixing for various panel systems, including glass, composite and metal cladding panels.
- It is also ideal for other structural curtain wall sealing applications in architectural and industrial projects.
Specification
Operating conditions of 23±2°C and 50±5%RH, then test:
| No |
Property |
Standards |
Results |
| 1 |
Type |
/ |
OXIME |
| 2 |
Density |
g/cm³ |
1.39 |
| 3 |
Sag/Slump |
Vertical Position/mm |
≤3 |
0 |
| Horizontal Position |
Non-Deformation |
Non-Deformation |
| 4 |
Extrusion Rate (ml/min) |
≥150 |
≥250 |
| 5 |
Tack-Free Time / h |
≤3 |
≤1 |
| 6 |
Shore A Hardness |
20~60 |
40~50 |
| 7 |
Thermal Ageing |
Thermal Weight Loss% |
≤10 |
≤5 |
| Thermal Cracking |
None |
None |
| Chalking |
None |
None |
| 8 |
Tensile Modulus (MPa) |
≥0.6 |
≥1 |
FAQ
Q1. Sample Availability
Samples are available for quality evaluation; mixed-model samples are accepted to meet your diverse testing requirements.
Q2. Production Lead Time
- Sample lead time: 2–3 working days
- Mass production lead time: 5–7 working days (after deposit confirmation)
Q3. MOQ Policy
Our products feature an ultra-low MOQ: only 1 piece is required for sampling and quality verification.
Q4. Shipping Methods
- Mass orders: Shipped by cost-effective sea freight for bulk transportation
- Sample orders: Delivered via international express (FedEx, DHL) for speedy delivery
Q5. Order Procedure
- Clarify technical requirements and application scenarios
- Receive a customized quotation based on your needs
- Confirm approved samples and arrange deposit payment
- Start mass production with real-time progress updates
Q6. Logo Customization
Yes, we support custom logo branding. Written confirmation (e.g., logo files and design specifications) is required before production to ensure accuracy.
Q7. Quality Warranty
Our structural silicone sealant includes a 35-year performance warranty, guaranteeing long-lasting reliability and structural integrity for all applications.

