Explore our foundational range of continuous filament derivatives, optimized for thermal barriers, composite matrices, and structural civil engineering projects.
Continuous basalt fiber (CBF) represents an outstanding breakthrough in structural and thermal materials science. Derived directly from dense, fine-grained volcanic basalt rock through a single-component melting process at temperatures exceeding 1450°C, these fibers exhibit thermal and mechanical properties that inherently surpass traditional silica-based glasses and steel alloys.
At the chemical level, basalt is composed primarily of silicon dioxide (SiO₂), aluminum oxide (Al₂O₃), iron oxides (Fe₂O₃ and FeO), calcium oxide (CaO), and magnesium oxide (MgO). The unique concentration of iron oxides imparts not only its characteristic dark golden-brown color, but also exceptional chemical inertia, making basalt fiber inherently resistant to strong acids, aggressive alkaline environments, and persistent ultraviolet radiation.
When extruded into ultra-thin continuous filaments (ranging from 9μm to 22μm), this volcanic rock transforms into highly flexible, incredibly strong yarns. When configured as custom basalt fiber sleeves and tape, it acts as a highly resilient mechanical armor that handles continuous operating temperatures of up to 700°C (with brief spikes reaching 980°C), while maintaining absolute structural cohesion where synthetic polymers, fiberglass, and even aluminum would rapidly melt, fail, or degrade.
Founded in 2015 and strategically positioned in the industrial hub of Jiujiang, Jiangxi Province, China Beihai has pioneered the scale production of continuous basalt fiber.
Our expansive industrial plant specializes in the full manufacture of primary and secondary basalt materials. This includes high-density basalt needle mats, woven roving, ultra-fine yarn, corrosion-resistant basalt rebars, and custom-braided basalt sleeves and tapes designed for specialized engineering applications.
By using proprietary platinum-rhodium alloy bushings, China Beihai ensures absolutely uniform filament diameter control during extrusion. This high-efficiency manufacturing capability translates into excellent mechanical consistency and allows us to offer highly competitive pricing configurations to global procurement channels.
Selecting China Beihai as your key supplier guarantees direct access to state-of-the-art volcanic mineral technology. We combine modern logistics channels, ISO-certified quality control protocols, and custom design capabilities to reliably fulfill large-scale orders from aerospace, marine, automotive, and industrial thermal management projects.
A technical evaluation showing how continuous basalt fiber provides key performance advantages compared to silica-based glasses and high-cost carbon alternatives.
| Performance Metric | Continuous Basalt Fiber | E-Glass Fiberglass | Carbon Fiber (Standard) |
|---|---|---|---|
| Tensile Strength (MPa) | 3000 - 4800 | 2400 - 3400 | 3500 - 6000 |
| Elastic Modulus (GPa) | 85 - 110 | 72 - 76 | 230 - 290 |
| Density (g/cm³) | 2.63 - 2.80 | 2.54 - 2.60 | 1.75 - 1.80 |
| Max Operating Temperature (°C) | 700°C (Peaks up to 980°C) | 380°C (Peaks up to 600°C) | 500°C (Oxidizes in air) |
| Chemical Inertia (Alkali Resistance) | Exceptional (Highly stable in concrete) | Poor (Requires chemical sizing) | Inert |
| Electrical Conductivity | Completely Insulating (Dielectric) | Insulating | Highly Conductive |
| Eco-Footprint & Recyclability | 100% Natural, Carbon-Neutral Base | Synthetic, Complex Recycle Path | Energy-Intensive, Hard to Recycle |
Our custom-engineered basalt fiber sleeves and tapes are designed for projects requiring extreme thermal shielding, high mechanical durability, and reliable dielectric properties.
Custom Basalt Fiber Sleeves: These tubular sleeves are braided with continuous basalt filament to create an expandable, snug-fitting protective shield. Primarily used to wrap high-temperature industrial pipelines, hydraulic systems, and exhaust lines, they guard against structural heat wear, molten metal splashes, and environmental degradation.
Custom Basalt Fiber Tapes: Available in plain, twill, or drop-warp weaves, these heavy-duty tapes provide excellent flexibility for wrapping tight geometries, complex cable channels, and exhaust manifolds. Custom coatings—such as vermiculite, silicone, or PTFE—can be applied to further improve chemical resistance and wet-out performance with composite resins.
Our engineering teams design these sleeves and tapes to meet precise parameters, ensuring optimal wall thickness, expandable braid angles, and specific width requirements for severe industrial environments.
Continuous Filament Roving: Engineered to provide a high-tensile core for pultruded components, woven fabrics, and braided protective sleeves.
These specialized basalt materials are trusted by leading engineers across the automotive, infrastructure, and heavy industrial sectors.
A non-woven thin sheet engineered to provide a smooth, resin-rich surface layer for FRP composites, offering excellent weatherability.
Learn More
High-performance basalt mesh that provides a durable reinforcement solution for concrete structures and external plastering work.
Learn More
A highly dense, chemically inert needle-bonded mat that provides premium thermal and acoustic insulation without artificial binders.
Learn More
Engineered by twisting multiple continuous basalt filaments to enhance mechanical strength and processing stability during braiding.
Learn MoreContinuous basalt fiber's dynamic properties make it a reliable choice for advanced applications across key global sectors.
Used to wrap retrofitted pillars, chimneys, and high-temp flues, and serves as an alkali-resistant concrete reinforcement.
Provides lightweight fire barriers, structural composite reinforcement, and thermal insulation shields for engine housing.
Ideal for thermal protection systems, spacecraft shell insulation layers, and high-temperature engine component wraps.
Basalt mesh, roving, and rebars enhance structural shear capacity and eliminate corrosion risks in civil works.
Applied as exhaust wraps and silencer inserts, and provides reliable thermal containment barriers in EV battery packs.
Protects bridge structures from impact, salt-spray corrosion, chemical attack, and harsh environmental weathering.
Protects refineries and chemical transport systems against high-pressure leaks, acid attacks, and high-temp corrosion.
Impervious to salt-water erosion. Ideal for wrapping marine exhaust dry lines, cargo hold lines, and subsea risers.
Structural Composite Rebars: A high-strength, lightweight alternative to steel bars designed for reinforcing concrete structures in highly corrosive environments.
Traditional carbon steel rebar reinforcement faces a persistent weakness: moisture-driven rust. As steel reinforcement oxidizes within a concrete structure, it expands, causing internal stress, cracking, and eventual failure of the structure.
Our composite basalt rebar offers a reliable alternative for civil engineers. It features a tensile strength that is double that of conventional steel, yet weighs only a fraction of the weight, which helps simplify handling on the job site.
Additionally, basalt fiber is naturally non-conductive, chemically inert, and highly resistant to alkaline environments. This makes it an ideal option for highly demanding applications, including marine seawalls, bridge decks, highway overlays, high-voltage substations, and sensitive hospital MRI rooms.
Our continuous basalt fiber products are manufactured in compliance with international quality standards, ensuring consistent performance for major global projects.
Explore our research reports on the performance, application, and structural properties of advanced basalt fiber solutions.
From drone structural components to heat protection barriers in automated industrial machinery, modern equipment relies heavily on materials that offer both light weight and extreme temperature stability. High-performance continuous basalt fiber represents a major shift toward high-performance, environmentally sustainable options, delivering exceptional performance across challenging aerospace, automotive, and civil engineering applications.
Technical guidance and material science specifications to assist engineers and procurement teams in selecting the right basalt solutions.
Review our broader structural portfolio, including needle-punched insulation mats, structural rebars, high-density roving, and multi-directional meshes.
Beihai Fiberglass