Sealing materials are substances used to create a barrier that prevents the passage of fluids, gases, or other substances. Common types include silicone, rubber, and foam, which are often used in construction, automotive, and plumbing applications. These materials help maintain energy efficiency and protect against leaks. In addition to their practical uses, sealing materials can also enhance the durability of products by providing resistance to environmental factors like moisture and temperature changes. Proper selection and application of sealing materials are crucial for ensuring long-lasting performance in various industries, including manufacturing and aerospace.