There are several grades of CF, bi-directional & quasi- istropic. The quasi-isotropic being the stronger of the two grades listed. Thers may be other grades but these are the two grades i know of. So you know the coloered CF is not pure CF. It has a CF core with colored fiberglass on each side. This is the place were alot of the RC manufacturers get there CF. http://www.kcinc.com/