Carbon fiber and carbon fiber cloth consist of bulk, chopped fibers, continuous strands or woven cloth forms of carbon or graphite. Carbon and graphite are used in reinforcing composites as well as other specialized electrical and thermal applications. Carbon fiber is made by charring synthetic polymer fibers made of polyacrylonitrile or PAN, by using an oxidation or thermal process. Carbon monofilament is composed of many long thin sheets of carbon molecules. The filaments are then spun into thread and woven into cloth.