Introduction: The Unseen Strength Behind Modern Innovation

In the world of advanced materials, one fiber has been silently transforming industries — Basalt Yarn. Often overshadowed by carbon and glass fibers, basalt yarn stands as a natural volcanic wonder, offering exceptional strength, heat resistance, and environmental sustainability. At DOMADIA™, we bring this hidden powerhouse to the forefront of modern engineering — redefining durability, performance, and eco-efficiency.

What is Basalt Yarn?

Basalt yarn is made by melting basalt rock — a natural volcanic material — at around 1450°C and drawing it into continuous filaments. These filaments are then twisted or woven to form basalt yarns of various thicknesses. The result? A high-performance fiber that’s naturally resilient and sustainable, without the need for chemical additives.

Chemical Composition of Basalt Yarn

Basalt yarn is primarily composed of:

  • Silicon dioxide (SiO₂): 45–55%
  • Aluminum oxide (Al₂O₃): 14–18%
  • Iron oxide (Fe₂O₃ + FeO): 9–11%
  • Calcium oxide (CaO): 7–10%
  • Magnesium oxide (MgO): 4–6%

This unique chemical structure gives basalt yarn its remarkable combination of thermal stability, mechanical strength, and corrosion resistance.

Properties That Set It Apart

PropertyValue / Range
Tensile Strength2800–4800 MPa
Elastic Modulus89–93 GPa
Density2.6–2.8 g/cm³
Thermal ResistanceUp to 800°C
Electrical ConductivityExcellent Insulator
Chemical ResistanceHigh (acid & alkali)
Water Absorption< 0.1%

Basalt yarn’s balance of mechanical power and heat endurance makes it ideal for environments where both performance and protection matter.

Applications Across Industries

1. Aerospace & Defense
Used for heat shields, aircraft insulation, and reinforcement composites due to its non-flammable nature and lightweight performance.

2. Automotive
In car bodies, exhaust insulation, and brake pads — basalt yarn improves thermal stability and reduces vibration.

3. Civil & Structural Engineering
A sustainable alternative to glass and carbon fibers in reinforced concrete, rebar wrapping, and FRP composites — increasing lifespan and reducing corrosion.

4. Marine & Shipbuilding
Provides corrosion-proof reinforcement in ship hulls and underwater structures.

5. Electrical Insulation
An excellent non-conductive and high-temperature-resistant material for cables, transformers, and electric machinery.

6. Fire Protection & Safety Gear
Ideal for fire blankets, welding curtains, and heat-resistant gloves, thanks to its non-toxic and flame-retardant properties.

    Standards and Technical Specifications

    DOMADIA™ ensures that every basalt yarn product adheres to international quality norms, including:

    • ISO 1887: Determination of loss on ignition
    • ISO 3344: Moisture content
    • ASTM D3039: Tensile properties of fiber-reinforced materials
    • ISO 10406-1: Fiber-reinforced polymer composites for civil structures

    Each batch undergoes rigorous quality control to ensure consistent performance and reliability.

    Shapes and Forms Available at DOMADIA™

    • Continuous Basalt Filament Yarn
    • Basalt Roving
    • Basalt Twisted Yarn
    • Basalt Woven Fabric
    • Basalt Mesh & Tape

    DOMADIA™ customizes basalt yarn configurations to meet your specific industrial requirements, whether for composites, insulation, or reinforcement.

    Why DOMADIA™ Basalt Yarn?

    At DOMADIA™, we don’t just sell materials — we engineer performance. Our basalt yarn stands out for:

    • Uniform filament structure ensuring high tensile integrity
    • Controlled production process for consistent quality
    • Eco-friendly, recyclable, and chemically inert material
    • Tailored supply options for diverse industrial applications

    Conclusion: The Fiber of the Future, Today

    In an age that demands strength, sustainability, and innovation, basalt yarn is not just an alternative — it’s a revolution in material science. Backed by DOMADIA™’s commitment to precision and performance, this hidden power fiber is setting new standards across industries — from aerospace to infrastructure.

    Basalt Yarn by DOMADIA™ — Nature’s strength, engineered for tomorrow.

    Discover the Strength of Nature.

    Upgrade your next project with DOMADIA™ Basalt Yarn — engineered for power, performance, and sustainability.
    👉 Contact us today to get a customized solution for your industry.

    Explore more at domadia.net

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