news

Understand the basic knowledge of silicone glass adhesive

Time:2025-02-06

1.Classification: Silicone glass sealant can be divided into two categories based on product packaging: single-component and two-component. 

One-component silicone adhesive cures by physically changing its properties upon contact with moisture in the air; two-component silicone adhesive, on the other hand, refers to a type where the adhesive is divided into two parts, A and B, neither of which can cure independently, but once mixed, they produce a cured product. Currently, one-component silicone glass adhesive is commonly found on the market, and this type of glass adhesive is primarily introduced in this book. One-component silicone glass adhesive is further divided into acidic and neutral adhesives based on its properties. Acidic glass adhesive is mainly used for general bonding between glass and other building materials. Neutral adhesive overcomes the characteristics of acidic adhesive, which corrodes metal materials and reacts with alkaline materials, thus having a wider range of applications and a slightly higher market price than acidic adhesive. A relatively special type of glass adhesive on the market is silicone structural sealant, which is directly used for metal and glass structures or non-structural bonding assemblies of glass curtain walls. Therefore, its quality requirements and product grade are the highest among glass adhesives, and its market price is also the highest. 


2. Brief Introduction: One-part silicone glass adhesive is a material similar to ointment that cures into a tough rubber-like solid once exposed to moisture in the air. Silicone glass adhesive has strong adhesive strength and tensile strength, as well as weather resistance, shock resistance, moisture resistance, odor resistance, and adaptability to large temperature changes. Coupled with its wide range of applicability, it can bond most building materials, making it of great application value. Silicone glass adhesive does not flow due to its own weight, so it can be used for seams on ceilings or side walls without sagging, collapsing, or flowing away. It is mainly used for bonding dry metal, glass, most non-greasy wood, silicone resin, vulcanized silicone rubber, ceramics, natural and synthetic fibers, as well as many painted plastic surfaces. Good quality silicone glass adhesive will not experience issues such as extrusion failure or changes in physical properties when used below zero degrees Celsius. Fully cured silicone glass adhesive can remain effective when used at temperatures up to 204°C (400°F), but the effective time will be shortened when the temperature reaches 218°C (428°F). Silicone glass adhesive comes in various colors, with black, porcelain white, transparent, silver gray, gray, and bronze being the commonly used colors. Other colors can be customized according to customer requirements. 


3. Usage 

(1) Acidic glass cement 

1. Suitable for sealing, blocking, leak prevention, and weatherproofing purposes, suitable for both indoor and outdoor use (with better indoor performance), with significant anti-seepage and leak prevention effects. 

2. Bonding various interior decorations of automobiles, including metal, fabric, organic fabric, and plastic. 

3. Attach the gasket on the heating and cooling equipment. 

4. Install rib strips, nameplates, and paint-coated plastic materials without screw holes on the metal surface. 

5. Seal the windows on the oven door, the flues on gas appliances, pipe joints, and access doors. 

6. Provide instant-forming leak-proof pads for gearboxes, compressors, and pumps. 

7. Seal the ship's hold and windows. 

8. Sealing of glass windows in the cab of trailers and trucks. 

9. Bonding and sealing equipment components. 

10. Form an anti-abrasion coating. 

11. Inlay and fill thin metal sheet laminations, ductwork networks, and equipment casings. 

(2) Neutral weather-resistant sealant 

1. Suitable for weather-resistant sealing of various curtain walls, especially recommended for weather-resistant sealing of glass curtain walls, aluminum-plastic panel curtain walls, and stone dry-hanging; 

2. Sealing of joints between metal, glass, aluminum, ceramic tile, plexiglass, and coated glass; 

3. Sealing of joints on surfaces made of concrete, cement, masonry, rock, marble, steel, wood, anodized aluminum, and painted aluminum. In most cases, primer is not necessary. 





The article is sourced from the internet