Classification of sealant
1, building sealant: used for simple wall caulking.
2, silicone weatherproof sealant (neutral glue) : used for waterproof sealing.
3, silicone structure sealant: used for structural bonding, fixing.
4, fire sealant: used for fire sealing.
5, butyl glue: used for the first sealing of insulating glass.
6, foam: used for plugging seam, and waterproof function.
Basic knowledge of sealant Silicone glass glue can be divided into two categories from product packaging: single component and two components. One component silicone rubber, its curing is the change of physical properties caused by contact with water in the air; Two-component refers to the silicone rubber is divided into A, B two groups, any group alone can not form cure, but the two groups of mortar once mixed will produce cure.
At present, the common market is a single component silicone glass glue. One component silicone glass glue is divided into two kinds of acid glue and neutral glue according to its properties. Acid glass glue is mainly used for general bonding between glass and other building materials. The neutral adhesive overcomes the acid adhesive corrosion of metal materials and alkaline material reaction characteristics, so the scope of application is wider, its market price is slightly higher than the acid adhesive. A special kind of glass adhesive on the market is silicone structural sealant, because it is directly used for metal and glass structure or non-structural bonding assembly of glass curtain wall, so the quality requirements and product grade are the highest in glass adhesive, and its market price is the highest.
One component silicone glass adhesive is a kind of ointment that solidifies into a tough, rubber-like solid material upon contact with moisture in the air. Silicone glass adhesive strong adhesion, tensile strength, but also has weather resistance, vibration resistance, and moisture-proof, odor resistance and adapt to the characteristics of big changes in cold and heat. In addition to its wider applicability, can realize the bonding between most building materials products, so the application value is very large. Silicone glass glue will not flow due to its own weight, so it can be used over the top or side wall joints without sag, collapse or flow away. It is mainly used for dry clean metal, glass, most of the wood without oil, silicone resin, sulfur silicone rubber, ceramics, natural and synthetic fiber, and a lot of paint plastic surface bonding. Good quality silicone glass glue in the use of below zero degrees Celsius will not be extruded, physical properties change and other phenomena. Fully cured silicone glass glue can still be used at 204℃(400oF), but the effective time will be shortened when the temperature is up to 218℃(428oF). Silicone glass glue has a variety of colors, commonly used colors are black, porcelain white, transparent, silver gray, gray, bronze six. Other colors can be customized according to customer requirements.