Description
Sikasil SG20 300ml – Box include 25 piece
Sikasil SG20 is a neutral-curing silicone adhesive which combines mechanical strength with high elongation. It adheres excellent to a wide range of substrates widely used in structural glazing applications.
Sikasil SG-20 – Structural Glazing Silicone Sealant
Sikasil SG-20 is a high-performance, one-component silicone sealant specifically developed for structural glazing applications. Designed for professional facade contractors, glazing specialists, and construction experts, this advanced sealant delivers exceptional adhesion, long-term durability, and outstanding weather resistance. It is ideal for bonding glass to metal frames in curtain wall systems, ensuring both structural integrity and aesthetic performance in modern building facades. Whether used in commercial developments or high-end architectural projects, Sikasil SG-20 provides reliable, long-lasting results under demanding conditions. Buy online – fast UK delivery.
Key Features and Benefits
- Structural glazing performance: Engineered for load-bearing bonding of glass to metal frames
- Excellent adhesion: Strong bonding to glass, aluminium, and coated metals
- High weather resistance: Outstanding resistance to UV, moisture, and extreme temperatures
- Long-term durability: Maintains performance and elasticity over time
- Neutral curing system: Low odour and suitable for sensitive substrates
- High movement capability: Accommodates structural movement without failure
- Professional finish: Ideal for clean, precise facade applications
- Certified performance: Meets key standards including ETAG 002, EN 13022 and ASTM C 1184 for structural glazing applications
- Fire rated: Tested to EN 11925-2 and DIN 4102-B1 standards for improved safety
- Superior adhesion: Bonds effectively to glass, metals, coated substrates, plastics and wood
- UV and weather resistant: Maintains performance in exposed external environments
Typical Applications
- Structural glazing in curtain wall systems
- Bonding glass panels to aluminium or metal frames
- Facade engineering and architectural glazing projects
- Sealing and bonding in commercial building envelopes
- Glass-to-metal bonding in high-performance construction systems
- Industrial bonding applications requiring strong, durable adhesion
Application and Surface Preparation
For optimal performance, surfaces must be clean, dry, and free from dust, grease, and contaminants. Proper surface preparation is essential to ensure strong adhesion and long-term durability.
Sikasil SG-20 is best applied at temperatures between 15°C and 25°C using standard sealant guns or professional pump systems. Joint design is critical and should be based on project requirements, material properties, and environmental exposure. Deep joints over 15 mm should be avoided to maintain performance.
Tooling should be completed within the sealant’s skin time to ensure proper bonding. Apply firm pressure during tooling to achieve full contact with the substrate. Avoid using tooling agents, as they may affect adhesion.
Advantages
- Designed for demanding structural glazing environments
- Provides long-term reliability in exposed facade applications
- Reduces maintenance requirements over time
- Supports modern architectural designs with clean finishes
- Easy application with consistent, professional results
Buy Sikasil SG-20 Online with Fast UK Delivery
Sealants4All, part of All4Construction Limited, is a trusted UK supplier of professional construction materials. As an official distributor of leading brands such as Sika, we supply genuine products tailored for the needs of builders, contractors, and glazing specialists. With fast and reliable UK delivery, you can order Sikasil SG-20 with confidence and keep your facade or glazing project on schedule.
Frequently Asked Questions
What is Sikasil SG-20 used for?
Sikasil SG-20 is specifically designed for structural glazing applications, where glass panels are bonded to metal frames. It provides the strength required for load-bearing joints in curtain wall systems. This makes it ideal for commercial buildings and modern architectural facades.
Is Sikasil SG-20 suitable for outdoor use?
Yes, Sikasil SG-20 is highly resistant to UV radiation, weather exposure, and temperature fluctuations. It is developed for long-term performance in external facade applications. This ensures durability and reliability even in harsh environmental conditions.
What materials does Sikasil SG-20 bond to?
It provides excellent adhesion to glass, aluminium, and various coated metal surfaces commonly used in facade systems. Proper surface preparation is important to achieve optimal performance. It is widely used in professional glazing and curtain wall installations.
Is Sikasil SG-20 flexible after curing?
Yes, once cured, it remains permanently elastic, allowing it to accommodate structural movement. This flexibility is essential in glazing systems where expansion and contraction occur. It helps prevent cracks or bond failure over time.
Is surface preparation important when using Sikasil SG-20?
Yes, correct surface preparation is essential for achieving strong and durable adhesion. Surfaces must be clean, dry, and free from contaminants such as oil, dust, or grease. Depending on the substrate, additional preparation or priming may be required to ensure long-term performance.
Why should I shop from sealants4all.co.uk?
Sealants4All is part of All4Construction Limited and supplies professional building materials across the UK. We offer trusted brands such as Sika, competitive pricing, and fast UK delivery to ensure you get the products you need quickly and reliably.
