The application of phenyl vinyl silicone in buildings in extremely cold areas is mainly reflected in its excellent low temperature resistance and other related characteristics. The following is a specific analysis of its application:

1. Characteristics of phenyl vinyl silicone
Low temperature resistance:
Due to the introduction of phenyl in the molecular chain, phenyl vinyl silicone has significantly improved its cold resistance. At extremely low temperatures, it can still maintain good elasticity and flexibility, which is difficult to match with traditional silicone.
Depending on the phenyl content, the low temperature resistance of phenyl vinyl silicone is also different. Generally speaking, low phenyl silicone with a phenyl content of 5% to 10% can still maintain the elasticity of rubber in the range of -70℃ to -100℃, which is the best low temperature performance among all rubbers.
Other properties:
In addition to low temperature resistance, phenyl vinyl silicone also has ablation resistance, radiation resistance, oxidation resistance, weather resistance, shock resistance, moisture resistance and good electrical insulation performance.
These properties enable phenyl vinyl silicone to maintain a stable working state even in extreme environments.

2. Application in buildings in extremely cold areas
Sealing materials:
Phenyl vinyl silicone can be used as a sealing material for building doors, windows, walls and other parts. In extremely cold areas, due to the large temperature difference and strong wind, the requirements for sealing materials are extremely high. With its excellent cold resistance and sealing properties, phenyl vinyl silicone can effectively prevent cold wind penetration and improve the thermal insulation performance of buildings.
Waterproof materials:
Phenyl vinyl silicone can also be used as a building waterproof material. In extremely cold areas, since precipitation mostly occurs in the form of snowfall and the temperature is low, it is easy to cause traditional waterproof materials to harden and crack. However, phenyl vinyl silicone can still maintain good flexibility at low temperatures, effectively prevent moisture penetration, and protect the building structure from damage.
Insulation materials:
Although phenyl vinyl silicone itself is not directly used as an insulation material, it can be used in combination with other insulation materials (such as polystyrene boards, rock wool, etc.) to improve the overall thermal insulation performance of the building. Through its excellent sealing and low temperature resistance, it ensures that the insulation material can still play an effective role in extremely cold environments.
Special structural materials:
In some buildings with special structures (such as cold storage, ice houses, etc.), phenyl vinyl silicone can be used as key components such as connectors and gaskets. These components need to withstand huge temperature differences and stress changes in extremely cold environments, and phenyl vinyl silicone can handle these tasks with its excellent performance.