Fiberglass Assembled Roving Description：

Fiberglass Assembled Roving is a type of fiberglass product that combines multiple strands of fiberglass into a single, larger strand. This product is made by combining multiple fiberglass strands, or "fibers", into a single strand, or "roving", through a process called "assembling".

Fiberglass Assembled Roving 778 Description：

Fiberglass Assembled Roving 778 is a high-quality product that combines multiple strands of fiberglass into a single, larger strand. This product is made by combining multiple fiberglass strands, or "fibers", into a single strand, or "roving", through a process called "assembling".

778 Fiberglass Assembled Roving Properties：

Physical Properties:

• Fiber Diameter: 13-15 microns
• Strand Count: 240-260 strands per roving
• Roving Weight: 200-250 grams per meter
• Linear Density: 2.5-3.0 g/m
• Twist: 2-4 turns per meter

Mechanical Properties:

• Tensile Strength: 15,000-20,000 psi (103-137 MPa)
• Elongation at Break: 3-5%
• Modulus of Elasticity: 7-9 million psi (48-62 GPa)
• Bending Stiffness: 0.5-1.5 x 10^3 N/mm^2

Thermal Properties:

• Melting Point: 820-850°C (1510-1562°F)
• Glass Transition Temperature (Tg): 550-600°C (1022-1112°F)
• Thermal Expansion Coefficient: 9-12 x 10^-6 K^-1

Electrical Properties:

• Dielectric Strength: 200-400 V/mil (8-16 kV/mm)
• Dielectric Constant: 3.5-4.5
• Volume Resistivity: 10^10-10^12 ohm-cm

Chemical Properties:

• pH Level: 7-9
• Moisture Content: <0.5%
• Solubility: Insoluble in water, organic solvents, and most acids and bases

778 Fiberglass Assembled Roving Feature：

• High-quality fiberglass strands
• Improved strength and durability
• Available in a variety of sizes and configurations
• Can be used in a variety of applications, including textile production, composite materials, insulation, and more

Principle of manufacturing：

Step 1: Fiberglass Strand Production

• The manufacturing process begins with the production of individual fiberglass strands through a process called spinning.
• The raw material used for spinning is a type of glass wool that is made from a mixture of sand, soda, and limestone.
• The glass wool is heated to a high temperature until it melts and forms a long, thin strand.
• The strand is then wound onto a spool to form a single, individual strand.

Step 2: Fiber Drawing and Cutting

• The individual fiberglass strands are then subjected to a process called fiber drawing, which involves stretching and drawing out the strand to the desired length and thickness.
• The strand is then cut to the desired length using a cutting die.
• The cutting process is critical to ensure that the strands are of uniform length and thickness.

Step 3: Assembly of Fiberglass Strands

• The individual fiberglass strands are then assembled into a single, larger strand through a process called assembling.
• The assembling process involves twisting the individual strands together to form a single roving.
• The twist is critical to ensure that the strands are securely held together and that the roving has the desired properties.

Step 4: Roving Winding

• The assembled roving is then wound onto a spool or cone to form the final product.
• The winding process involves winding the roving in a specific pattern to ensure that the strands are evenly spaced and that the roving has the desired texture.

Step 5: Quality Control and Testing

• The final product is then subjected to quality control and testing to ensure that it meets the required standards.
• The testing process includes measurements of the roving's diameter, tensile strength, and elongation at break.

778 Fiberglass Assembled Roving Application：

• Fiberglass Assembled Roving 778 is commonly used in a variety of applications, including:
• Textile production
• Composite materials
• Insulation
• Reinforced plastics
• And more

Technical Data：

Dimensions and Tolerances:

• Diameter Tolerance: ±5%
• Length Tolerance: ±2%
• Twist Tolerance: ±10%

Packaging And Storage：

Strong Market Presence:

As trusted fiberglass yarn suppliers, we offer competitive wholesale prices and ensure reliable supply across various sectors. Whether you need robust weaving solutions, durable casing materials, or efficient electrical insulation, our E-Glass Fiberglass Yarn meets your requirements with excellence. Count on our commitment to quality and innovation to enhance your manufacturing processes.

Contact us today to learn more about our E-Glass Fiberglass Yarn offerings and how we can support your specific needs. Elevate your industrial operations with our premium fiberglass yarn solutions!

After-sales service:

Fast delivery, affordable prices, enthusiastic full service, contact us immediately.

Resin Compatibility:  Epoxy (EP)  Unsaturated polyester Vinyl ester

USES：Boats/yachts  Chemical corrosion resistance applications