Compressed Asbestos Fiber (CAF) gasket is a versatile material that satisfies this need. Despite its name, the product is made of a blend of materials like graphite, carbon fibre, and, yes, asbestos. As the name implies, CAF gaskets are made by compressing fibres to fit into the desired shape and size.

By definition, a gasket is a mechanical seal that fills the space between two or more mating surfaces, often to prevent leakage while the joined objects are under compression. So, essentially, gaskets fill in the spaces where components of a machine or fixture have gaps.