Silicone sealants are formulated with different functional group structures in the organic silicon polymer main chain to be flexible, adherent and extremely durable over time, so that they can continue to deliver the performance level of their initial specifications for many years. So applying them can prevent effectively doors and windows from aging. Meanwhile, silicone sealants are waterproof, UV resistant and weatherproof, and they have resistance in a wide range of temperature conditions from freezing winter to torrid summers. Besides, silicone sealants have excellent elasticity to prevent breakage and they are safe without any toxic substances for end-users. For doors and windows that have to be exposed to the outdoors all the time, silicone sealants with above properties fully meet the requirements of sealing the gaps of doors and windows.

The most used way to seal two pieces of glass is the double channel sealing structure. Firstly, two pieces of glass are separated by article interval, and the gaps between the glass and the article interval are sealed by butyl rubber to prevent moisture transferring into airspace. Then, the gaps between the glass edge and article internal should be bonded by the secondary sealant to hold unit together. The secondary seal mainly adopts silicone sealants.
Silicone sealants are formulated with different functional group structures in the organic silicon polymer main chain, they have stable structure and can keep the performance level of their initial specifications for many years. Meanwhile, they have the advantages of moisture-proof, UV-resistance, anti-corrosion, high and low temperature resistance and strong tensile strength. In brief, silicone sealants can keep the structure of insulating glass stable and prevent it from aging.