Sealing techniques are methods used to close or secure openings in various materials to prevent leakage, contamination, or damage. Common applications include packaging, construction, and automotive industries. Techniques can involve the use of adhesives, gaskets, or heat sealing, depending on the materials and requirements. Different sealing methods offer unique advantages. For instance, heat sealing is often used in food packaging to create airtight seals, while gaskets are essential in machinery to prevent fluid leaks. Understanding the appropriate sealing technique is crucial for ensuring durability and effectiveness in any application.