Carbon Fiber Pens

Carbon fiber, alternatively graphite fiber, carbon graphite or CF, is a material consisting of fibers about 5-10 micrometers in diameter and composed mostly of carbon atoms. Several thousand carbon fibers are bundled together to form a tow, which may be used by itself or woven into a fabric. When combined with a plastic resin, it forms carbon fiber reinforced polymer (often referred to as carbon fiber) which has a very high strength-to-weight ratio.