Packaging Size: 600 ml pouch
Packaging Type: Foil Sausage / Pouch
Colours Available: Black, White, Grey
Brand: Wacker
Cure Type: Neutral Cure
Compatible Materials: Glass, Aluminium, Coated Metals, Ceramic Tiles
Country of Origin: Made in India
Availability: In Stock
In the world of modern architecture, the integrity of a high-rise building or a commercial complex depends heavily on the strength of its invisible bonds. Wacker SG79 Silicone Sealant is a high-performance, neutral-curing structural silicone specifically engineered to meet the rigorous demands of structural glazing and façade applications.
Designed to act as a structural “bridge” between glass and metal, Wacker SG79 Silicone Sealant is not just a sealant; it is a critical engineering component. At Poly Prime Industry, we recognize that for large-scale projects in Delhi and NCR, reliability and genuine quality are non-negotiable. That is why we provide Wacker SG79 Silicone Sealant 600 ml (Structural Glazing) in ready stock to ensure your project stays on schedule and meets international safety standards.
Structural glazing requires a sealant that can handle more than just water-tightness. It must support the weight of the glass, resist wind loads, and accommodate thermal expansion. Wacker SG79 excels in these areas due to its unique chemical formulation.
Unlike acetoxy sealants, Wacker SG79 Silicone Sealant is a neutral-cure system. This means it does not release acidic vapors during the curing process, making it perfectly safe for use on sensitive substrates like coated glass, aluminum, and galvanized steel. It ensures there is no corrosion or discoloration over decades of service.
Façades are constantly punished by harsh sunlight (UV radiation), heavy rain, and extreme temperature fluctuations—especially in the Delhi climate. Wacker SG79 is formulated to remain permanently flexible. It does not crack, shrink, or become brittle, maintaining its bond strength even after years of exposure to the elements.
This sealant is specifically designed to transfer dynamic loads (like wind pressure) from the glass to the building’s perimeter frame. Its high tensile strength ensures that the glass remains securely bonded under the most stressful environmental conditions.
The 600 ml foil pouch (Sausage pack) is the industry standard for professional projects. Here’s why:
Efficiency: The 600 ml volume allows for longer, continuous beads of sealant, reducing the frequency of cartridge changes and speeding up the glazing process.
Minimal Waste: Foil pouches are easier to compress, ensuring that almost 99% of the product is used, which reduces material waste and project costs.
Color Versatility: To match the aesthetics of modern aluminum profiles and glass tints, Wacker SG79 is available in Black, White, and Grey.
The versatility of Wacker SG79 Silicone Sealant makes it indispensable for several high-stakes construction tasks:
The primary use of SG79 is in two-sided or four-sided structural glazing. It creates a robust bond between the glass and the aluminum sub-frame, allowing for “all-glass” exterior looks without visible metal supports.
In modern commercial buildings, curtain walls must withstand significant wind loads and seismic movements. Wacker SG79 provides the necessary elasticity to absorb these movements without compromising the seal.
Whether it’s for window frames or large entrance facades, the adhesion of SG79 to anodized and powder-coated aluminum is second to none, eliminating the need for complex mechanical fasteners in many cases.
For residential and commercial towers, safety is paramount. Wacker SG79 Silicone Sealant is tested to meet international standards for structural silicone, making it the trusted choice for engineers working on high-elevation glazing.
| Property | Description |
| Product Name | Wacker SG79 Silicone Sealant 600 ml (Structural Glazing) |
| Cure Type | Neutral Alkoxy |
| Consistency | Non-sag, Thixotropic Paste |
| Movement Capability | ± 25% to 50% (depending on joint design) |
| Service Temperature | -40°C to +150°C |
| Hardness (Shore A) | Approx. 35-40 |
| Shelf Life | 12 Months (stored in cool, dry conditions) |
To achieve a warrantable, long-lasting structural bond with Wacker SG79 Silicone Sealant, follow these expert steps:
Structural joints must be surgically clean. Use a lint-free cloth soaked in a solvent (like Isopropyl Alcohol) to wipe the surface, followed immediately by a dry wipe with a clean cloth. This ensures all oils and dust are removed.
While Wacker SG79 Silicone Sealant has excellent primerless adhesion to most common substrates, always perform a “peel-off” test on-site. For certain specialized coatings, a Wacker primer may be recommended to enhance the bond.
The joint should be designed by a structural engineer. Ensure the “Bite” (the width of the sealant bond) is sufficient to carry the design loads of the glass panel.
Apply the sealant using a professional sausage gun. Tool the sealant immediately after application to ensure full contact with the joint flanks. This also gives the joint a smooth, professional finish.
Buying structural sealant is a matter of trust. At Poly Prime Industry, we don’t just sell a product; we provide a guarantee of performance.
100% Genuine Stock: We source directly to ensure you get the real Wacker SG79 Silicone Sealant. Fake or expired sealants can lead to structural failure—we never compromise on quality.
Ready Bulk Inventory: We understand that large projects cannot wait. Our warehouse in Krishna Nagar, Delhi maintains significant stock levels of 600 ml foil packs in all standard colors.
Technical Consultancy: Our team can help you understand the technical data sheets (TDS) and safety data sheets (SDS) required for project approvals.
Competitive Wholesale Pricing: We offer the best rates in the Delhi market for bulk orders, helping contractors maintain their margins without sacrificing quality.
Q1. What is the difference between Wacker SG79 and regular weather-seal silicone?
Regular weather-seal silicone is designed only to stop water and air. Wacker SG79 Silicone Sealant is a structural grade sealant, meaning it is formulated to handle the physical weight and wind pressure of the glass panels.
Q2. Can I use a standard caulking gun for the 600 ml pouch?
No. You will need a Sausage-type Sealant Gun (Manual, Battery, or Pneumatic) specifically designed to hold 600 ml foil pouches.
Q3. Is Wacker SG79 resistant to fire?
While it has excellent temperature resistance, it is not a “fire-stop” rated sealant. For fire-rated applications, you would need a specific fire-resistant grade.
Q4. How long does Wacker SG79 take to fully cure?
It skins over in 15-20 minutes, but for structural loads, it usually requires 7 to 14 days to reach full strength, depending on the joint depth and humidity.
Q5. Where can I buy Wacker SG79 600ml in Delhi?
You can purchase it directly from Poly Prime Industry. We offer pickup from our Delhi location and delivery across the NCR region.
When you choose Wacker SG79 Silicone Sealant 600 ml (Structural Glazing), you are investing in the longevity and safety of your building. Partner with Poly Prime Industry to ensure you get the best material, the best price, and the best service in the industry.
