1708 x 50″ Biaxial Fibreglass +/- 45

1708 is used where optimum strength and stiffness, particularly in corners and angles, is critical. Biaxial fabric consists of two layers stitched together, with their fiber strands lying at +/- 45 degrees to the edges (instead of along the roll and across at 90 degrees, as with plain weave fiberglass fabrics).