Glass curtain wall sealant
The glass curtain wall is widely used because of its beauty, energy saving, easy maintenance and many other advantages. The glass curtain wall is a structural exterior wall assembled based on the unit parts of the glass curtain wall sealed by the sealant adhesive bonding. The glass unit is elastically connected with the metal frame by the silicone structural sealant. The structural sealant plays the role of structural bonding. Transmit and bear the stress of the main structure, so the durability and stability of the silicone structural adhesive is directly related to the safety of the curtain wall. Once the structural adhesive fails, it will lead to the failure of the entire curtain wall system, and even cause the occurrence of accidents such as venting, water leakage, and glass falling off, which will cause extremely negative social impacts.

With the increasing number of glass curtain wall projects, the problem of the quality of glass curtain wall projects due to structural tape has become more and more prominent. This article will analyze the typical quality problems of glass curtain walls from the perspective of silicone structural sealant, and explain how silicone sealant connects high-rise buildings safely?

The structural glass, which uses silicone sealant materials to fix the glass in the window structure, first appeared in the 1970s. It has the good performance of thermal insulation and solidity. The essence of glass window technology lies in the high performance of structural silicone adhesives and sealants. They can perform two functions:

First, seal the building to protect the interior from harsh environmental factors.

The curtain wall of the building can transfer the wind load to the structural glass and improve the safety factor of the building. If the design is reasonable, the structural curtain wall system can withstand the impact of external forces such as tension, compression, thermal shear stress, gravity and continuous motion. The excellent adhesion of silicone sealant materials can also improve the building's ability to withstand high-intensity wind loads and impact stress. Since silicone sealant can be used with different building materials, it is an ideal material for maintaining glass curtain walls. Silicone sealant has the ability to resist high temperature, wind, humidity and chemicals, so that it can withstand a variety of external environmental factors faced by the building, such as strong wind, temperature changes and acid rain, which can lead to structural wear and tear of the curtain wall , Which has a great impact on the appearance and service life of the building. Silicone sealant also has the ability to bond multiple materials to form a hermetic seal.

Second, it can not only maintain the thermal insulation of the building, but also integrate with other building materials

For example, cement, glass, granite, marble, aluminum, steel and plastics can effectively prevent the negative effects of rust and corrosion of these building substrates. Silicone sealant is also an ideal choice for fixing materials, it has high flexibility and versatility. When commercial building windows have higher impact resistance requirements, silicone sealant materials can be used to fix large pieces of glass in the window structure.