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

USA: width 39.37", weight 12.5 oz/yd²

Glass Fabric 425 g/m² (Interglas 92146, Aero, Warp-Reinforced Plain Weave), Width 100 cm

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

Material manufactured to aerospace standards

Weave style: warp-reinforced plain weave

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 load direction.

This fabric construction is especially suitable for components where loads mainly act along one axis. Typical applications include spars and spar caps in model aircraft and aircraft construction, longitudinal reinforcements in boatbuilding and automotive applications, as well as other structural GFRP components with directional load transfer.

The high areal weight also allows thicker laminate sections to be built up efficiently with fewer layers. This can reduce lay-up effort and processing time without sacrificing the benefits of a woven reinforcement material.

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

Applications

Interglas 92146 was developed for components requiring high strength and stiffness predominantly in one load direction. Due to its increased fiber content in the warp direction, the fabric is particularly suitable for components with directional load transfer.

Typical applications include:

• Spars and spar caps in model aircraft and aircraft construction
• Load-bearing reinforcements in automotive and motorsport applications
• Longitudinal reinforcements in boat and yacht building
• UAV and drone structures
• Lightweight structural components
• Mould making and technical composite applications
• 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 design, epoxy resins are recommended, as they generally provide the best mechanical properties and highest long-term durability.

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

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

Benefits of the Warp-Reinforced Construction

The special fabric construction of Interglas 92146 concentrates a large proportion of the fibers in the warp direction. This enables significantly higher strength and stiffness along the main load direction than comparable standard fabrics with the same areal weight.

At the same time, the weft yarns provide the typical dimensional stability and handling characteristics of a woven fabric. The material therefore represents an interesting middle ground between conventional woven fabrics and purely unidirectional reinforcements.

Technical Notes

Suitable Load Directions

The fabric was developed for applications where loads occur mainly along one preferred direction. For multidirectional loads, combining it with additional fabric layers in different orientations may be advisable.

Warp-Reinforced Construction

The majority of the fibers run in the warp direction. This results in particularly high strength and stiffness along the main load direction.

Difference Compared with Standard Plain Weave Fabrics

While conventional plain weave fabrics have an approximately balanced fiber distribution in 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 provide fabric stability, good handling and dimensional stability. As a result, the fabric combines the advantages of directional fiber orientation with the processing characteristics of a conventional woven fabric.

Aero Quality

Interglas 92146 is manufactured to meet aerospace industry requirements. Its high manufacturing quality and reproducible properties make it a proven choice for demanding composite applications.