Designed for use in a broad range of closed mold processes, the unique nature of Polybeam(R) enables resin flow without introducing hard "channels" minimizing the "profiling" effects seen with other resin transfer media. Polybeam's(R) loft and compression properties have been optimized to create an extremely high level of permeability. This permeability results in reduced time and labor associated with resin input line set-up, as well as simplicity and repeatability that can be duplicated in parts of any size.