Fine E-glass fabric with an areal weight of 163 g/m² in twill weave and a 127 cm working width for lightweight, large-area GFRP laminates and demanding lightweight composite structures.
Interglas 92110 with FK 144 finish combines good drapability with a fine, uniform fabric construction. The 127 cm width allows larger continuous plies to be cut for wider components and can therefore reduce the number of fabric joints and overlap areas. Particularly suitable for aircraft and model aircraft construction, automotive components, marine structures and high-quality composite parts.
MATERIAL IN AVIATION QUALITY
Interglas 92110 is a fine E-glass filament fabric with an areal weight of 163 g/m². The twill weave provides good conformability to curves and three-dimensional component geometries. In the 127 cm version, the fabric is particularly suitable for larger shells, fairings and panel-type components where a wider continuous reinforcement provides advantages during cutting and laminate lay-up.
| Interglas |
92110 |
| Fibre type |
E-glass |
| Areal weight |
163 g/m² |
| Finish |
FK 144 |
| Weave |
Twill |
| Yarn, warp / weft |
EC 9-68 / EC 9-68 |
| Thread count, warp / weft |
12.0 ends/cm / 11.5 picks/cm |
| Width |
127 cm |
Benefits of the Fabric
Interglas 92110 combines a moderate areal weight of 163 g/m² with the good drapability of a twill weave. This allows the fabric to conform readily to curves, radii and more complex component contours and makes it suitable for thin, lightweight GFRP laminates.
Both the warp and weft use EC 9-68 glass filament yarn. With 12.0 ends/cm in the warp direction and 11.5 picks/cm in the weft direction, the yarn distribution is very similar in both principal directions. This results in a largely uniform fibre distribution in the warp and weft directions.
The fine fabric construction can be uniformly wetted out with a suitable laminating resin. When fully impregnated, the glass reinforcement becomes largely transparent. This facilitates visual inspection during lay-up and is advantageous for thin facing and surface plies.
Applications
The 127 cm version is particularly suitable for larger components where a wider fabric width can reduce the number of joints and overlap areas. The combination of low areal weight, twill weave and increased working width is particularly useful for lightweight shell and panel-type components.
Typical applications:
- Aircraft and ultralight aircraft construction
- Fuselage shells and fairings
- Model aircraft and larger model components
- Automotive fairings and lightweight vehicle components
- Boat and yacht components
- Curved GFRP moulded parts
- Lightweight shell and panel-type components
- High-quality surface and facing plies
Suitable Resin Systems
The glass fabric can be processed with suitable epoxy, polyester and vinyl ester resin systems. Suitable epoxy resin systems are commonly used for structural lightweight components and demanding composite applications.
For thin laminates, a sufficiently low resin viscosity is advantageous because it facilitates uniform and complete wet-out of the fine fabric structure. For larger components, the working time and pot life of the resin system should be matched to the area to be laminated.
Calculated Data for Hand Lay-Up Laminates with 35 Vol.-% Fibre Content
| Resin consumption |
128 g/m² |
| Laminate thickness |
0.179 mm |
| Laminate weight |
291 g/m² |
Benefits of the 127 cm Width
The 127 cm width allows wider continuous plies to be cut for larger fuselage shells, fairings, wing sections and other panel-type components. Components within the available fabric width can be covered without an additional longitudinal joint.
Compared with the 100 cm version, the additional width can reduce the number of fabric joints and overlap areas on suitably sized components. This helps minimise local material build-up and facilitates a more uniform laminate construction.
For narrower or smaller components, however, the 100 cm version may be more convenient in terms of handling and material utilisation.
Technical Notes
Twill Weave
The twill construction has fewer yarn interlacings than a comparable plain weave and therefore provides greater drapability. The fabric can conform readily to curved and three-dimensional component geometries. Unnecessary yarn displacement should be avoided during cutting and positioning.
Handling Wide Plies
For larger fabric plies, a sufficiently large and clean cutting surface is recommended. Wide cut pieces should be picked up evenly and transferred to the mould carefully to minimise unwanted distortion of the fabric structure.
Wet-Out and Transparency
Wet out the fabric uniformly with laminating resin. When fully impregnated, the glass reinforcement becomes largely transparent, making it easier to identify dry areas and trapped air during processing.
Resin Application
Apply the resin in the quantity required for complete wet-out. Unnecessary excess resin increases laminate weight and thickness without increasing the fibre content or the fibre-related reinforcing contribution.
Calculated Laminate Data
The stated values are calculated for a hand lay-up laminate with a fibre volume fraction of 35%. Actual resin consumption, laminate thickness and laminate weight depend on the resin system, manufacturing process and fibre volume fraction achieved in practice.
Aviation Applications
The aviation quality of the fabric alone does not constitute approval of the finished laminate or component. For the specific application, the specified laminate lay-up, resin system, manufacturing process and applicable approval requirements must be observed.
MSDS Interglas Glass fabric (PDF)
