E-glass Biaxial ±45° Fabric 600 g/m²

E-glass Biaxial ±45° Fabric 600 g/m² is a non-crimp stitched (NCF) two-ply reinforcement with one ply at +45° and one ply at −45°, symmetric and balanced about the warp direction. Typical layer split is 300 g/m² @ +45° plus 300 g/m² @ −45°, with total areal weight 600 g/m² (±5%). Standard width is 1270 mm; base yarn is 1200 or 2400 tex E-glass. Because the two off-axis layers are stitched rather than woven, fibers in both directions stay straight and the fabric delivers the full theoretical ±45° shear modulus, well above an equivalent woven biaxial.

The epoxy-compatible silane sizing is tuned for vacuum infusion and prepreg cycles used on wind blade shear webs and skins. The ±45° construction places fibers exactly where torsional and shear loads are highest, making it the standard pairing with 0° UD spar caps in a complete blade shell layup. Stack on either side of UD plies to absorb shear without losing 0° tensile and compressive performance.