Hexcel’s unidirectional reinforcements are nonwoven carbon fabrics that have 99% of the areal weight in the 0 direction and are stabilized by a thin proprietary warp thread. These fabrics are ideal as a wet lay-up or resin infusion alternative to unidirectional prepreg tapes. Hexcel produces carbon unidirectional reinforcements in an areal weight range of 156 to 1200 gsm.