1. Characteristics of glass fiber spray up roving

What is glass fiber spray up roving?Glass fiber spray up roving is a short-cut reinforcement material designed for spray molding process. It is mainly composed of continuous glass fiber after short-cut processing, and then sprayed with resin synchronously through special equipment. It is widely used in the reinforcement layer structure of FRP products. The core characteristics are as follows:

Excellent reinforcement performance:The roving has a compact structure, good dispersion and corrosion resistance, and can significantly improve the overall strength and durability of the finished product.

High construction flexibility:Suitable for complex structures and large-area plying, suitable for a variety of mold shapes.

Uniform fiber distribution:The short-cut length is consistent, which is conducive to uniform spraying and curing molding.

Excellent permeability:Good permeability and film coating, and good compatibility with resin.

2. Advantages of glass fiber spray up roving

Efficient molding:Fast spraying speed, continuous plying, saving time and labor.

Strong adaptability:Adaptable to a variety of resin systems.

High composite strength:The molded composite material has good tensile, bending and impact properties.

Cost controllable:High construction efficiency, less material loss, and excellent overall cost performance.

3. Typical application scenarios

Construction and building materials:Sanitary ware, cold storage interior lining, water tanks, sinks and other products.

Transportation:Truck shells, motorcycle covers, car bumpers and other structural parts.

Shipbuilding:Used for yachts, fishing boats, speedboats and other hull structure reinforcement molding.

Wind power and energy:Corrosion-resistant structural layers such as wind blades, chemical containers, and pipeline linings.

4. Purchase and use guide

Key parameter reference: 

Fiber diameter: generally 12μm, selected according to product requirements and customer requirements.                                                                                                                        

Linear density: Common models are 2400tex, 4800tex, etc., which affects the spraying stability.

Wetting agent type: Select matching wetting agent according to the resin system used to ensure that the roving and resin are fully bonded.

Usage suggestions:

Use special spraying equipment (such as spray guns) to ensure that the chopped roving and resin are mixed evenly in proportion.

Store in a dry and ventilated place, avoid moisture or direct sunlight.

5. FAQ

What is the difference between glass fiber spray up roving and chopped strand mat, and how to choose?

Many customers will be entangled when choosing materials. In fact, the application scenarios of the two are very different:

Spray roving: usually with equipment spraying, suitable for large and special-shaped structures, such as hulls and storage tanks, with high one-time molding efficiency.

Chopped strand mat: more suitable for flat or regular molds, such as automotive parts and building boards, hand lay-up or compression molding processes are more used.

Can your glass fiber be used in epoxy resin?

Of course, but be careful to choose the right model. The epoxy system needs to be equipped with a special impregnation agent so that the glass fiber and resin can be fully combined, otherwise it is easy to delaminate or bubble. We will recommend the appropriate glass fiber model according to your process and resin type.

Is there any particularity in the storage of spray roving?

Glass fiber is afraid of moisture and pollution. It is best to store it in a dry and cool warehouse, and keep the original packaging unopened.If it is not used for a long time, be careful not to let the temperature difference in the warehouse be too large to avoid moisture absorption and affect the performance of the impregnant.

6. Summary

Glass fiber spray up roving has become a widely used reinforcement material in the FRP industry due to its advantages such as high construction efficiency, good reinforcement effect and strong adaptability. Reasonable selection and standardized operation will help improve product performance and reduce overall costs, and it is a high-quality choice in composite material applications.If you are looking for high-quality spray up roving products, the hot-selling products in China are JUSHI176 roving, Taishan T132BS,CYS-E321, etc. For more information or to obtain our glass fiber spray up roving product information, please contact us via email annayu@169chem.net or call 18909016373.