Explore our top-tier certified basalt fiber matrices, designed to exceed standard engineering parameters under mechanical stresses and aggressive environmental factors.
Founded in 2015 in Jiujiang, Jiangxi Province, China Beihai is a high-tech enterprise dedicated to the research, development, engineering, and global export of continuous basalt fiber products and continuous extrusion equipment.
As an industry-recognized leader in high-performance materials, we control the entire basalt production chain: from raw, volcanic rock processing at 1450°C in our proprietary platinum-rhodium alloy bushing furnaces, to complex multi-axial weave weaving, texturizing, and surface chemical functionalization.
Direct control over quality, logistics speed, and consistency of supply.
Tailored organosilane matrices for maximized resin or concrete compatibility.
Continuous basalt fiber represents a revolutionary leap forward in polymer composite engineering and geotechnical stability. Observe the empirical characteristics defining our production standards.
A detailed examination of material science, weaving configurations, and performance metrics compared to traditional reinforcements.
Unlike synthetic glass fibers or energy-intensive carbon structures, basalt fiber is manufactured directly from natural igneous basalt rock. The mineral composition is rich in silicates ($SiO_2$ typically 45-52%) and alumina ($Al_2O_3$), alongside essential metallic oxides ($Fe_2O_3$, $FeO$, $CaO$, $MgO$) that provide its distinctive golden-brown hue and superior chemical stability.
During the extrusion phase at the China Beihai facility, basalt rock is melted at $1450^\circ\text{C}$ to $1500^\circ\text{C}$ without chemical additives. The molten lava is extruded through high-precision multi-nozzle platinum-rhodium alloy bushings, cooling rapidly into continuous filaments ranging from 9 to 22 microns in diameter. These filaments are treated with customized silane coupling agents (sizing) that establish covalent bonds with resin matrices, ensuring flawless load transfer.
The performance of basalt fiber cloth depends significantly on its weaving configuration. We offer structured configurations optimized for different engineering applications:
To help structural engineers and procurement specialists make data-driven decisions, the following matrix compares basalt fiber with traditional high-performance reinforcement fibers:
| Physical Parameter | Basalt Fiber (Beihai) | E-Glass Fiber | Carbon Fiber (PAN) | Aramid Fiber (Kevlar 49) |
|---|---|---|---|---|
| Tensile Strength (MPa) | 2,100 – 2,500 | 1,500 – 2,000 | 3,500 – 4,500 | 2,800 – 3,200 |
| Elastic Modulus (GPa) | 85 – 93 | 72 – 76 | 230 – 240 | 120 – 130 |
| Operating Temp Limit (°C) | -260 to +650 | -60 to +300 | Up to 1500 (inert) | -190 to +250 |
| Density (g/cm³) | 2.67 | 2.54 | 1.75 | 1.44 |
| Alkali / Acid Resistance | Excellent (Sizing protected) | Poor (Degrades rapidly) | Excellent | Moderate |
| Eco-Footprint / Recycle | Excellent (100% natural) | Moderate | Poor (High energy input) | Poor |
Partnering with China Beihai gives you a major advantage in manufacturing capacity, cost-efficiency, and strict quality control.
Our facility in Jiujiang, Jiangxi, is located near high-quality basalt mineral deposits. Combined with our industrial-scale extrusion furnaces, this allows us to offer unmatched price-to-performance value, stable pricing, and rapid delivery for large orders.
Every production run undergoes strict testing, including filament diameter verification, sizing consistency checks, and ASTM/ISO tensile testing. Our products are fully traceable from the raw volcanic basalt rock to the finished fabric rolls.
We support custom engineering requirements, including customized weaving patterns, hybrid weaves (basalt-carbon, basalt-aramid), custom roll dimensions, and specialized chemical sizing tailored for epoxy, vinyl ester, or cement matrices.
We understand the challenges global procurement teams face, including compliance, customs, and technical integration. Our dedicated team is here to support you at every stage.
We provide full documentation, including ASTM, ISO, REACH, and RoHS certificates, to ensure quick customs clearance and seamless integration into public infrastructure, defense, and high-performance commercial projects.
Customized Solutions: Helping you choose the right sizing chemistry to maximize bond strength with your specific polymer matrices.
Flexible Packaging: Humidity-controlled vacuum packaging ensures long shelf life and stable quality during ocean transit.
On-Demand Logistics: Direct shipping routes from major ports like Ningbo, Shanghai, or Shenzhen ensure reliable, on-time delivery.
Because of its unique chemical and physical properties, continuous basalt fiber has become a key material in a wide range of industries.
01
Excellent for concrete reinforcement, wrapping bridge columns, and retrofitting historical structures. Basalt fiber is resistant to alkali environments, preventing corrosion-induced structural failures.
02
Used for interior cabin lining panels, radomes, and secondary structural components. It offers exceptional fire, smoke, and toxicity performance compared to standard carbon-epoxy systems.
03
Ideal for high-volume parts, including underbody shields, engine acoustic panels, mufflers, and lightweight EV battery enclosures, providing excellent heat shielding and impact absorption.
04
Perfect for offshore oil rigs, undersea fiber conduits, and acid-resistant tank liners. Basalt fiber is completely immune to rust, saltwater degradation, and harsh chemical environments.
We hold comprehensive ISO, CE, and global test certifications, meeting the high standards required by advanced industrial and government-sponsored infrastructure projects.
ISO 9001 System
CE Certification
ASTM Certified
REACH Standard
RoHS Compliance
National Lab Certified
Stay up to date with new breakthroughs in continuous basalt fiber research, smart robotics, and structural composite engineering.
As drones monitor ecosystems and smart robotic arms automate factories, lightweight, high-strength structural support is more critical than ever. Basalt fiber composites have emerged as a high-performance alternative to traditional metals, offering the perfect balance of strength, lightweight design, and long-term durability.
Beihai Research Center: Integrating nanosilica additives with continuous sizing methods to boost ultimate interlaminar shear strength (ILSS) by 18%.
Get authoritative answers to technical and procurement questions about continuous basalt fiber weaves.
Continuous basalt fiber is a highly cost-effective alternative. It offers about 60-70% of the tensile strength of carbon fiber at only 15-20% of the cost. This makes it an ideal option for projects requiring substantial reinforcement without the premium cost of carbon fiber.
Basalt is naturally resistant to alkalis and acids. To enhance this, we apply a proprietary, alkali-resistant silane chemical sizing during the extrusion process. This creates a protective barrier that prevents concrete's highly alkaline pore solution from degrading the silicates, ensuring reliable, long-term performance.
Yes, our plant is equipped with advanced rapier looms capable of weaving hybrid systems (such as Basalt/Carbon or Basalt/Aramid). We also customize roll widths from 50mm to 3000mm and fabric weights from 100g/m² to over 1200g/m² to match your exact structural specifications.
Standard production runs are usually ready in 15 to 20 days. Thanks to Jiujiang's strategic location along the Yangtze River, we offer fast container shipping to major ports like Shanghai or Shenzhen, with international shipping times typically ranging from 15 to 35 days depending on the destination.
Explore our specialized basalt fiber configurations, designed for extreme thermal insulation, electrical protection, and high-load reinforcement projects.
Beihai Fiberglass