Glass non-crimp fabric 340 g/m² (biaxial, ± 45°), width 127 cm

USA: width 50", weight 10 oz/yd²

Detailed Description

This biaxial glass reinforcement is manufactured from high-quality E-glass fibres with a silane finish. The primary load-bearing fibre layers are oriented at +45° and -45° and are held together by a lightweight polyester stitching thread. Additional 0° and 90° stabilising fibres improve dimensional stability during handling and simplify cutting, positioning and lamination.

Unlike conventional woven fabrics, the fibres are not interlaced but laid almost perfectly straight. This minimises fibre crimp, allowing the mechanical properties of the glass fibres to be utilised more effectively within the laminate. At the same time, the reinforcement conforms well to complex three-dimensional shapes, enabling uniform laminate construction.

The ±45° fibre orientation is specifically designed to absorb shear and torsional loads efficiently. For this reason, biaxial reinforcements are widely used wherever lightweight structures require high torsional stiffness combined with low weight. Typical applications include boatbuilding, automotive engineering, rotor blades, aerospace structures, sporting goods and general composite construction.

Advantages in Use

Optimised for Torsional Loads

The primary ±45° fibre layers efficiently absorb shear and torsional stresses, making this reinforcement particularly suitable for components where torsional rigidity is more important than pure tensile or compressive strength.

Nearly Straight Fibre Alignment

Because the fibres are stitched rather than woven, fibre crimp is kept to a minimum. This enables the mechanical properties of the glass fibres to be utilised more efficiently within the laminate.

Excellent Drapeability

The reinforcement conforms easily to complex mould geometries and curved surfaces, simplifying laminate lay-up and helping to minimise wrinkles.

Stable During Processing

The integrated 0° and 90° stabilising fibres maintain the integrity of the reinforcement during cutting, positioning and lamination, improving handling without significantly increasing the areal weight.

Typical Applications

• Boat and yacht construction
• Ultralight aircraft and aerospace structures
• Automotive engineering and motorsport
• Wind turbine rotor blades
• Sporting goods and recreational equipment
• Composite tubes and profiles
• Sandwich structures
• General GRP and CFRP lightweight construction

Processing

The open stitched construction allows excellent resin impregnation and efficient air release during lamination. The reinforcement is suitable for hand lay-up, vacuum infusion, RTM and other common composite manufacturing processes.

Compatible with epoxy, polyester and vinyl ester resin systems.

Technical Data

Construction

Calculated Laminate Properties
(Hand Lay-up, 35% Fibre Volume Content)

Technical Notes

Biaxial glass reinforcements are primarily used where shear and torsional loads must be carried efficiently. The ±45° fibre layers provide the principal load-bearing function, while the lightweight 0° and 90° stabilising fibres maintain dimensional stability during handling and processing.

For load-optimised laminate designs, biaxial reinforcements are often combined with unidirectional or 0°/90° reinforcements to tailor the fibre architecture to the expected load paths.