1. Characteristics of glass fiber stitched mat

What is glass fiber stitched mat? Glass fiber stitched mat is a reinforcing material made of glass fiber chopped yarn, continuous roving or woven fabric stacked in multiple layers and then stitched with polyester yarn. Unlike traditional powder-bonded/emulsion chopped mat, stitched mat does not use binder, but is physically connected by stitches, which has stronger structural stability and reinforcement performance.Its core characteristics are as follows:

Glue-free structure, environmentally friendly and high-strength: does not contain binder, has high fiber integrity, and has better strength than traditional chopped strand mats;

Multi-layer structure: upper and lower chopped strands, middle woven fabric or roving can be adjusted;

Excellent wettability and interlayer bonding: resin is easy to penetrate and tightly bonded;

Small deformation, efficient layering: the stitching structure ensures that the cloth layer is not easy to move or wrinkle.

2. Advantages of glass fiber stitched mat

Excellent mechanical properties: the reinforcement layer is stable, tensile and impact resistant;

Environmentally friendly and clean: does not contain glue powder, and meets export environmental protection standards;

Strong dimensional stability: the layering process is not easy to deform and has good operability;

Suitable for molding thick products and large structural parts: especially suitable for RTM molding and winding processes.

3. Typical application scenarios

Wind energy field: high-strength parts such as the main beam, root, and shell of wind turbine blades;

Lightweight automotive parts: bottom plate, battery tray, door lining, etc.;

Rail transit: high-speed rail seats, car body composite structure;

Building anti-corrosion components: pultruded channel steel, fiberglass floor, bridge formwork;

Large storage tanks and pipelines: winding inner layer, structural reinforcement layer, etc.

4. Selection and use guide

 Parameter reference:

Total individual weight/Chopped strands mat individual weight: 300, 380, 450g/m²

Roll width: 500-2400mm

Adaptive process: RTM, molding, winding, hand lay-up, etc.

Usage suggestions:

It is recommended to lay the whole piece to avoid shearing and damaging the seam structure;

Related to the resin impregnation speed, the impregnation time should be controlled;

Pay attention to flat stacking during storage to avoid waving of the seams.

5. FAQ

The difference between stitched mat and woven roving

Both stitched mat and woven roving are glass fiber reinforced materials, but they differ significantly in structure and use process.

Stitched mat is a material that physically stitches together different layers of glass fiber through stitches. It does not use chemical glue powder, has a looser structure, is conducive to rapid resin penetration, and has strong interlayer bonding. It is particularly suitable for RTM, molding and other processes. It is widely used in wind turbine blades, automobile lightweight, boat structures and other fields.

Woven roving is a single layer of glass fiber roving formed by traditional weaving technology. It has a tighter structure and is mainly responsible for enhancing the mechanical properties in the 0° and 90° directions. It is usually used in hand lay-up, pultrusion and other processes, and is suitable for the structural layer of the product.

About the influence of stitches

The stitches used in stitched mat are generally polyester or other heat-curable materials, which are compatible with the composite material system. They will be integrated into the matrix during heating and curing, and have little effect on the performance and appearance of the product. It will not affect the resin performance like powder.

6. Summary

Glass fiber stitched mat is a reinforcement material that integrates high strength, multi-layer structure and good processing performance. It is one of the key upgraded materials in the modern composite material industry. It is widely used in wind energy, transportation, construction and other fields, especially suitable for the manufacture of high-performance and environmentally friendly products.We are a glassfiber manufacturer in China.If you are looking for high-quality glass fiber stitched mat , our product CYS13396-467 is the right choice.

If you need more information or want to obtain our glass fiber stitched mat product information, please contact us via email at annayu@169chem.net or by phone at 18909016373.whats app:+86 18909016373