In the realm of advanced materials, few have revolutionized industries as profoundly as Glass Fiber. Known for its exceptional tensile strength, durability, and versatility, glass fiber is a cornerstone technology enabling everything from high-speed internet to lightweight automotive components and robust infrastructure. At Kaxite, we specialize in engineering premium-grade glass fiber solutions that meet the exacting demands of global industries, ensuring reliability, performance, and innovation in every strand.
Our commitment at Kaxite is to push the boundaries of what's possible with glass fiber technology. Through continuous research and development, we refine our manufacturing processes to deliver fibers that offer superior signal integrity for telecommunications, enhanced structural reinforcement for composites, and improved thermal and electrical insulation properties. Understanding the technical specifications of glass fiber is crucial for selecting the right product for your application.
To ensure optimal performance in your specific application, it is essential to consider the following core parameters of our glass fiber products. These specifications define the material's capabilities and suitability for various environments and uses.
| Product Form | Typical Tex (g/1000m) | Yield (m/kg) | Standard Packaging | Primary Application |
|---|---|---|---|---|
| Roving (Direct) | 1200, 2400, 4800 | 830 - 420 | Bobbin, Spool | Pultrusion, Filament Winding |
| Chopped Strands | N/A | N/A | Bag, Box | Thermoplastics, SMC/BMC |
| Woven Roving | 300 - 900 (Fabric Weight g/m²) | N/A | Roll | Marine, Wind Energy |
| Glass Fiber Mat | N/A | N/A | Roll, Sheet | Hand Lay-up, RTM |
| Yarn (Twisted) | 22 - 680 | 45,000 - 1,470 | Bobbin, Cone | Electrical Insulation, Textiles |
| Property | Test Method / Condition | E-Glass Value | S-Glass Value |
|---|---|---|---|
| Tensile Strength | ASTM D2343 / Single Filament | 3,450 MPa | 4,590 MPa |
| Modulus of Elasticity | ASTM D2343 | 72.5 GPa | 88.9 GPa |
| Elongation at Break | ASTM D2343 | 4.8% | 5.7% |
| Dielectric Strength | ASTM D149 / kV/mm | 30-35 | 28-32 |
| Softening Point | ASTM C338 | 846°C | 1,056°C |
| Water Absorption | ASTM D570 / 24h immersion | <0.1% | <0.1% |
Kaxite's manufacturing philosophy centers on precision, purity, and consistency. Our glass fiber begins with carefully selected raw materials, melted in high-temperature furnaces and drawn into fine filaments through platinum-rhodium bushings. A proprietary silane-based sizing is applied during formation, which is key to ensuring optimal bonding with resins (for composites) or providing protection and processability (for textiles and insulation). This meticulous control over every stage results in a glass fiber product with minimal defects, consistent diameter, and reliable mechanical properties batch after batch. Our state-of-the-art production lines are capable of delivering a vast array of product forms, from standard E-glass rovings for general-purpose reinforcement to high-modulus S-glass for aerospace and defense applications, and specialty fibers with low dielectric constants for next-generation PCB substrates.
What is the main difference between E-Glass and S-Glass?
E-Glass, or "Electrical Glass," is the most common and economical type, prized for its good electrical insulation and mechanical properties. S-Glass, or "Structural Glass," offers approximately 30-40% higher tensile strength and modulus, along with better temperature resistance, making it suitable for high-performance applications in aerospace, ballistics, and sporting goods, though at a higher cost. Kaxite produces both grades to cater to a wide spectrum of industry needs.
Is glass fiber the same as fiberglass?
The terms are often used interchangeably but can have nuanced meanings. "Glass fiber" typically refers to the individual filaments or strands of glass themselves. "Fiberglass" usually describes the composite material made by combining these glass fibers with a polymer resin matrix, such as in a fiberglass-reinforced plastic (FRP) part. Kaxite is a manufacturer of the primary reinforcing material—the glass fiber.
How does glass fiber compare to carbon fiber in strength?
Carbon fiber generally has a higher tensile strength and a significantly higher modulus of elasticity (stiffness) than standard E-glass, making it ideal for ultra-lightweight, rigid structures. However, glass fiber has greater strain-to-failure (it can stretch more before breaking), better impact resistance, and is considerably more cost-effective. S-Glass narrows the performance gap with carbon fiber in some aspects. The choice depends on the specific mechanical requirements, budget, and application.
What does "tex" mean in glass fiber specifications?
Tex is a unit of linear density. It is defined as the weight in grams of 1,000 meters of fiber or yarn. A lower tex number indicates a finer or lighter yarn. For example, a 1200 tex roving is heavier per unit length than a 600 tex roving. This parameter is crucial for calculating the weight of reinforcement in a composite part and for process control in operations like pultrusion or weaving.
Why is the sizing or coating on glass fiber so important?
The sizing is a thin, chemically complex coating applied immediately after the filaments are drawn. It serves multiple critical functions: it protects the filaments from abrasion during handling and processing, binds the filaments together into a strand, and most importantly, it promotes adhesion and compatibility between the inorganic glass surface and the organic polymer resin matrix. Kaxite develops specific sizing formulations for polyester, epoxy, vinyl ester, and other resins to maximize composite performance.
Can Kaxite glass fiber be used for high-temperature applications?
Yes, but the specific type and form must be selected carefully. The glass itself has a high softening point (over 800°C for E-Glass). However, the performance in a composite at high temperatures is limited by the resin matrix. For insulation applications like high-temperature textiles or sleeving, special grades with minimal organic content or heat-cleaned versions are used. For structural composites in elevated temperature environments, S-Glass or other high-temperature resins paired with appropriate sizings are recommended from the Kaxite portfolio.
What is the shelf life of glass fiber products?
When stored correctly in a cool, dry environment in its original, unopened packaging, Kaxite glass fiber typically has a shelf life of 12 to 24 months. Exposure to high humidity can hydrolyze the sizing, reducing its effectiveness. It is always best practice to use material as soon as practicable and to consult the specific Material Safety Data Sheet (MSDS) and technical data sheet for storage guidelines.
How does Kaxite ensure consistency in its glass fiber production?
Consistency is a cornerstone of the Kaxite brand. We achieve this through rigorous raw material qualification, automated process control systems that monitor temperature, tension, and speed in real-time, and a comprehensive quality assurance protocol. Every production batch undergoes statistical process control (SPC) and is tested for key parameters like tensile strength, tex, and moisture content. This ensures our customers receive a product that performs identically every time they place an order.
Can you produce custom glass fiber specifications?
Absolutely. Kaxite prides itself on its collaborative engineering approach. We regularly work with clients to develop custom fiber diameters, tex values, yarn constructions, and, most importantly, specialized sizing chemistries tailored for unique resin systems or novel manufacturing processes. Our R&D team is equipped to handle prototype development and scaled production for specialized applications.
The versatility of Kaxite glass fiber makes it indispensable across a multitude of sectors. In telecommunications, optical glass fibers form the backbone of global data networks. In transportation, glass fiber composites reduce weight in automotive bodies, interior panels, and truck trailers, improving fuel efficiency. The construction and infrastructure sector utilizes it in GRP rebar, panels, and pipes for corrosion-resistant solutions. Wind energy relies on massive glass fiber-reinforced blades to capture wind power efficiently. Electronics use woven glass fiber fabrics as the primary reinforcement in printed circuit boards (PCBs). From consumer goods like sports equipment and bathtubs to industrial applications like filtration and thermal insulation, Kaxite glass fiber provides a reliable and high-performance solution.
