SV999 Structural Silicone Sealant for Curtain Wall & Structural Glazing
Product Description
Features & Benefits
• High Structural Strength
Provides strong bonding performance suitable for structural glazing and curtain wall assembly.
• Excellent Primerless Adhesion
Bonds securely to glass, aluminum, stainless steel, and many building materials without primer.
• Outstanding Weather Resistance
Superior resistance to UV radiation, rain, temperature fluctuations, and outdoor aging.
• Long-Term Elasticity
Maintains flexibility to accommodate structural movement and thermal expansion.
• Neutral Cure System
Non-corrosive to most substrates including metals and coated surfaces.
• Excellent Durability
Designed for long-term structural applications in building facade systems.
• Compatible with Other Silicone Sealants
Works well with most silicone weatherproof sealants in curtain wall systems.
Color
SV999 Structural Glazing Silicone Sealant is available in clear, black, gray, white and other customized colors.
SV-999 structural silicone sealant is designed for professional construction and facade engineering applications, including:
1.Structural Glazing Curtain Wall Systems
Bonding glass panels to aluminum frames in two-side or four-side structural glazing systems.
2.Glass Facade Structural Bonding
Providing structural adhesion between glass and supporting metal structures.
3.Aluminum Curtain Wall Assembly
Bonding and sealing aluminum curtain wall components in commercial buildings.
4.Skylights and Glass Roof Systems
Used in structural glazing for skylights, atriums, and glass canopy installations.
5.High-Rise Building Facades
Designed to withstand wind loads and structural movement in high-rise curtain wall construction.
Technical Data
These values are not intended for use in preparing specifications
|
Test standard |
Test project |
Unit |
value |
|
Before curing——25℃，50%R.H. |
|||
|
Specific gravity |
g/ml |
1.40 |
|
|
GB13477 |
Flow, sagging or vertical flow |
mm |
0 |
|
GB13477 |
Operating time |
min |
15 |
|
GB13477 |
surface drying time（25℃，50%R.H.） |
min |
40-60 |
|
Sealant curing speed and operating time will have different with different temperatures and temperature, high temperature and high humidity can make sealant curing speed faster, rather low temperature and low humidity are slower. 21 days after curing——25℃，50%R.H. |
|||
|
GB13477 |
Durometer Hardness |
Shore A |
40 |
|
The ultimate tensile strength |
Mpa |
1.3 |
|
|
GB13477 |
Tensile strength（23℃） |
Mpa |
0.8 |
|
GB13477 |
Tensile strength（90℃） |
Mpa |
0.5 |
|
GB13477 |
Tensile strength（-30℃） |
Mpa |
0.9 |
|
GB13477 |
Tensile strength（flooding） |
Mpa |
0.6 |
|
GB13477 |
Tensile strength(flooding - ultraviolet) |
Mpa |
0.6 |
Typical Properties
Product Information
PACKAGING
SV-999 structural silicone sealant is typically supplied in:
• 300 ml cartridges
• 590 ml sausages
• 200 L drums (for automatic mixing systems)
Custom packaging may be available upon request.
Storage And Shelf Life
SV999 should be stored at or below 27℃ in original unopened containers. It has a shelf life of 12 months from the date of manufacture.
Compliance and Standards
SV-999 structural silicone sealant is manufactured to meet relevant international and industry standards.
Typical compliance may include:
• ASTM C1184 – Structural Silicone Sealants
• GB/T 14683 – Construction Silicone Sealant
• ISO 11600
These standards ensure the product delivers reliable structural performance and long-term durability in facade construction.
Safety Information
● SV999 is a chemical product, not edible, no implantation into body and should be kept away from children.
● Cured silicone rubber can be handled without any risk to health.
● Should uncured silicone sealant contact with eyes, rinse thoroughly with water and seek medical treatment if irritation persists.
● Avoid prolonged exposure of skin to uncured silicone sealant.
● Good ventilation is necessary for work and cure places.
Why Choose SIWAY Structural Silicone Sealant
SIWAY sealants are widely used in global construction projects due to their consistent quality and reliable performance.
Advantages include:
• Professional curtain wall sealant manufacturing
• Strict quality control systems
• International construction project experience
• Stable product performance for large engineering projects
FAQ
Q:What is structural silicone sealant?
A:Structural silicone sealant is a high-strength adhesive used to bond glass panels to metal frames in curtain wall systems, allowing the sealant to carry structural loads.
Q:What is the difference between structural and weatherproof silicone sealant?
A;Structural silicone sealants are designed to bear structural loads, while weatherproof sealants are mainly used for sealing joints against air and water.
Q:Can SV-999 be used for curtain wall structural glazing?
A:Yes. SV-999 is specifically designed for structural glazing curtain wall applications, providing strong bonding and long-term durability.
Contact Us
Shanghai Siway Building Material Co.Ltd
No. 668 Xinzhuan Road, Xinqiao Town, Songjiang District, Shanghai, China
Tel: +86 21 37682288 Fax:+86 21 37682288
