Rubber Gasket also known as a full-faced gasket, is a type of seal used to create a watertight or airtight connection between two flat surfaces, typically flanges. It is made from a flexible and compressible rubber material, such as EPDM or nitrile rubber, which conforms to the surfaces it is sealing against to create a tight seal. Full face gaskets are available in a variety of sizes and thicknesses to suit a wide range of applications.