Sealing is the process of closing or securing an object to prevent the entry or escape of substances, such as air, water, or contaminants. This can be done using various materials, including adhesives, tapes, or gaskets. Sealing is essential in many applications, such as packaging, construction, and automotive industries, to ensure safety and efficiency. In addition to physical sealing, the term can also refer to the act of officially closing or finalizing documents, such as contracts or legal papers. This often involves the use of a seal or signature to indicate authenticity and agreement between parties.