What is one of the main things that sealants help to prevent?

Sealants play a critical role in aerospace applications by providing a barrier that prevents the ingress of moisture and other corrosive agents. Corrosion, particularly in metal components, can lead to significant structural integrity issues and compromises the durability and safety of aircraft. By effectively sealing joints and connections, sealants help to protect materials from environmental conditions that could lead to corrosion, such as exposure to water, chemicals, and electrolytes present in the atmosphere. This protective function is essential in maintaining the longevity and reliability of aerospace structures.

While condensation, electromagnetic interference, and temperature fluctuations are important factors to consider in aerospace design, they are not the primary focus of sealant applications. Sealants are specifically engineered to create moisture-proof barriers that reduce the risk of corrosion, making the prevention of corrosion their main function.