Glass fabric 425 g/m² (Interglas 92146, aero, unidirectional), width 100 cm

USA: width 39.37", weight 12.5 oz/yd²

Interglas 92146 / Finish FK 144 (WLB No. 8.4525.60)

Material manufactured to aerospace standards

Weave style: Plain weave, warp-reinforced

Yarn (tex):
Warp: EC 9 - 136 x 5 t0
Weft: EC 9 - 68

Thread count:
Warp: 5.5 ends/cm
Weft: 6.3 picks/cm

Width: 100 cm

Fabric Benefits

Interglas 92146 is a high-quality Aero glass fabric with an areal weight of 425 g/m² and is manufactured to meet aerospace industry requirements. Compared with conventional plain weave fabrics, a significantly larger proportion of the fibers is arranged in the warp direction. This provides high strength and stiffness, particularly in one preferred direction.

This fabric construction is especially suitable for components where loads act predominantly along one axis. The fibers can be aligned with the primary load direction, allowing a load-oriented laminate design.

The high areal weight also allows thicker laminate sections to be built up efficiently with fewer plies. This can reduce lay-up effort and processing time compared with lighter fabrics.

Manufacture to aerospace standards and the proven FK 144 finish ensure a uniform fabric structure, reliable processing characteristics and reproducible properties.

Applications

Interglas 92146 is suitable for structural components requiring high strength and stiffness predominantly in one load direction. Due to its increased fiber content in the warp direction, it is particularly suitable for directional GFRP reinforcements and load-oriented laminate designs.

Typical applications:

• Spars and spar caps in model aircraft and aircraft construction
• Load-bearing and local GFRP reinforcements
• Longitudinal reinforcements in boat and yacht building
• Structural components in automotive and motorsport applications
• UAV and drone structures
• Structural components in technical lightweight construction
• Highly loaded GFRP and sandwich structures

Compared with lighter fabrics, the 425 g/m² areal weight allows thicker laminate sections to be built up more quickly. The required laminate thickness can often be achieved with fewer plies, reducing lay-up effort and processing time.

Suitable Resin Systems

The glass fabric can be processed with epoxy, polyester and vinyl ester resin systems.

For highly loaded structural components and applications in aircraft construction, automotive engineering, boatbuilding and technical lightweight construction, epoxy resins are recommended.

Theoretical Data for Hand Lay-Up Laminates with 35 Vol.-% Fiber Content

Resin consumption: 349 g/m²
Laminate thickness: 0.47 mm
Laminate weight: 774 g/m²

Benefits of the Warp-Reinforced Construction

The special construction of Interglas 92146 concentrates a large proportion of the fibers in the warp direction. This allows strength and stiffness to be introduced specifically along the primary load direction of the component.

At the same time, the weft yarns provide the dimensional stability and good handling characteristics of a woven fabric. The material therefore combines a strongly directional fiber orientation with the processing characteristics of a woven reinforcement.

Technical Notes

Orientation in the Component
The warp direction should be aligned as closely as possible with the primary load direction of the component in order to make optimum use of the warp-reinforced construction.

Suitable Load Directions
The fabric is designed for applications where loads occur predominantly along one preferred direction. For multidirectional loading, combining it with additional fabric plies in different fiber orientations may be advisable.

Warp-Reinforced Construction
The majority of the fiber content is concentrated in the warp direction. This provides high strength and stiffness along the primary load direction.

Difference Compared with Standard Plain Weave Fabrics
While conventional plain weave fabrics have a comparatively balanced fiber distribution in the warp and weft directions, Interglas 92146 has a significantly increased fiber content in the warp direction. This makes it particularly suitable for components with directional load transfer.

Difference Compared with Unidirectional Reinforcements
Interglas 92146 is not a purely unidirectional reinforcement. The weft yarns stabilize the fabric structure and facilitate handling, cutting and lay-up. The fabric therefore combines a pronounced preferred fiber orientation with the dimensional stability of a woven reinforcement.

Aero Quality