1. Characteristics of glass fiber hoop roving

What is glass fiber hoop roving?Glass fiber hoop roving(also filament winding roving) is a reinforcing material specially used in winding molding process. It is made of E glass components. The roving bundle has uniform tension, good wettability and low breakage rate. It is suitable for manufacturing FRP storage tanks, pipelines, high-pressure vessels and other pressure-bearing structural parts. Its core features are as follows:

Excellent tension stability: ensure that the high-speed winding process is not interrupted and the roving direction is uniform;

Adaptable to a variety of resin systems: compatible with unsaturated polyester, epoxy, vinyl and other system resins;

Good wettability and layering: the roving bundle can quickly absorb the resin to form a dense composite structure;

Strong structural mechanical properties: suitable for the manufacture of high-pressure and high-strength products;

2. Advantages of glass fiber hoop roving

High efficiency: adaptable to high-speed winding lines, good continuity, and stable operation;

Strong reinforcement performance: the product has excellent tensile, compressive and creep resistance;

Good molding effect: the surface of the wound product is flat, with few bubbles and a dense structure;

Environmentally friendly impregnating agent: supports environmental protection regulations and does not contain harmful substances;

3. Typical application scenarios

GRP pipes: water supply pipes, sewage pipes, chemical delivery pipes, high-pressure pipes;

GRP storage tanks: chemical liquid tanks, food storage tanks, fire water tanks;

Pressure vessels: high-pressure gas cylinders, gas tanks, fiber winding shells;

Infrastructure materials: bridge pipes, buried pipes, submarine cable protection pipes, etc.

4. Purchase and Use Guide

Main parameter reference:

Line density: Common ones are 2400tex, 4800tex, 9600tex, etc.;

Sizing agent system: Select the corresponding supporting product model according to the resin used (UP/VE/EP);

Usage suggestions:

Check the tension system before use to avoid roving skipping and end breakage during winding;

Pay attention to the neat arrangement of roving bundles to prevent knotting or bridging during winding, which affects the appearance.

Storage conditions: It is recommended to keep dry, ventilated, avoid direct sunlight, and the ambient humidity is less than 65%.

5.FAQ

What is the difference between hoop roving and direct roving?

Hoop roving is actually a category of direct roving, which is specially optimized for the filament winding process. Compared with ordinary direct yarn, it is more stable in tension control, breakage rate, impregnation speed, etc., and can meet the requirements of fiber uniformity and molding efficiency during continuous winding.

What winding equipment is suitable for winding yarn?

Hoop roving is suitable for various multi-axis winding equipment, including common single-axis, double-axis and four-axis winding processes. Different equipment differs in tension, layer angle, and winding speed. Hoop rovi can adapt well to these different working conditions by optimizing yarn strength and surface treatment, ensuring that continuous production is not easy to break or de-filament.

Will the winding yarn have fuzz?

Under normal process and storage conditions, the fuzz of high-quality winding yarn is controlled within the standard range, which will not affect the wettability of the fiber and the strength of the product. However, if the storage environment is humid, the tension control is improper, or the equipment adjustment is unreasonable, slight fuzz may appear on the yarn surface. It is recommended to check the yarn state before production and adjust the process parameters in time to ensure stable product quality.

6. Summary

Glass fiber winding roving is a high-performance reinforcement material developed specifically for winding process. It has excellent tension control ability, wetting performance and mechanical strength. It plays a key role in pressure vessels, composite pipelines, large storage tanks and other fields. Through scientific selection and standardized operation, the consistency, safety and durability of the products can be significantly improved.We are a glass fiber manufacturer in China.If you are looking for high-quality hoop roving, our product CYS-E312 is the right choice.

For more information, or to obtain our glass fiber winding roving product information, please contact me via email annayu@169chem.net or phone 18909016373.whats app:+86 18909016373