A gasket is a mechanical seal used to fill the space between two or more surfaces, preventing leaks of fluids or gases. It is typically made from materials like rubber, silicone, or metal, and is designed to withstand pressure and temperature variations. Gaskets are commonly found in engines, plumbing systems, and various machinery. Gaskets come in various shapes and sizes, tailored to fit specific applications. They play a crucial role in ensuring the proper functioning of devices by maintaining airtight or watertight seals. Proper installation and maintenance of gaskets are essential for the longevity of equipment, such as engines and pumps.