Excellent Thermal Stability 5 Micron Fiber Diameter Basalt Fiber Twisted Yarn

Product Specification

Excellent Thermal Stability 5 Micron Fiber Diameter Basalt Fiber Twisted Yarn Industrial Textile Use

Our 5‑Micron Basalt Fiber Twisted Yarn is a premium‑grade continuous filament yarn engineered for demanding industrial textile applications. Produced from naturally occurring volcanic rock, this yarn combines an ultra‑fine 5‑micron filament diameter with a precise twisting process to deliver unmatched flexibility, coverage, and thermal resilience – all while maintaining the inherent eco‑friendliness of basalt.

With a filament diameter significantly finer than standard basalt yarns (typically 7–17 µm), this product opens new possibilities for lightweight, high‑strength textiles that require superior drapeability and surface uniformity.

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Key Features

· Excellent Thermal Stability

Withstands continuous service from ‑260°C up to +900°C (short‑term peaks to 982°C) without degradation – ideal for fire‑resistant fabrics and high‑heat insulation.

· Ultra‑Fine 5‑Micron Diameter

The finer filament offers:

· Higher specific surface area for better coating/adhesion

· Improved yarn softness and bending fatigue resistance

· Smoother, more uniform textile surfaces for filtration and wrapping

· Twisted Yarn Construction

Precision Z‑ or S‑twist (120–150 twists/m) enhances:

· Tensile strength and abrasion resistance

· Handling ease during weaving, knitting, or braiding

· Dimensional stability in end‑use textiles

· Chemical & Environmental Durability

Excellent resistance to alkalis (pH up to 14), acids, UV radiation, and moisture absorption < 0.1%.

· Electrical Insulation

High dielectric strength makes it suitable for electronic textile applications.

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Technical Specifications

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Industrial Textile Applications

Thanks to its 5‑micron fineness and twisted structure, this yarn excels in:

· High‑temperature filtration fabrics – fine mesh with lower pressure drop

· Fire‑retardant curtains and welding blankets – lightweight yet protective

· Reinforcement for composite prepregs – improved resin wet‑out

· Braided sleeving and cable insulation – flexible and crush‑resistant

· Sealing and gasket materials – excellent compressibility

· Aerospace interior textiles – non‑combustible and low smoke emission

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Why Choose Our 5‑Micron Twisted Yarn?

Advantage Benefit

Finer than standard Enables thinner, lighter fabrics without sacrificing strength

Twisted for processability Reduces fuzzing and breakage during high‑speed weaving/knitting

Pure basalt – no additives Fully recyclable and non‑toxic, safer than asbestos and fiberglass

Consistent quality Strict diameter and twist uniformity (deviation < 5%)

Cost‑effective Lower price than carbon or ceramic fibers, with comparable thermal performance

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Conclusion

Our 5‑Micron Basalt Fiber Twisted Yarn redefines what basalt can do for industrial textiles. The combination of ultra‑fine filaments and engineered twist delivers a yarn that is not only heat‑stable and chemically robust but also textile‑friendly – allowing you to weave, braid, or knit with confidence. Whether you are producing fire‑safe protective clothing, high‑efficiency filter bags, or advanced composite reinforcements, this yarn offers the precision and performance your application demands.

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Specifications:

Other specifications are available for customization.

• Mechanical properties for basalt fiber produced by Pasia