Basalt twisted yarn, made from 6µm to 13µm filaments and twisted 60-100 times per meter, is used for heat (650-980ª ) and radiation-resistant fabrics with superb electrical insulation, tensile strength, and high-temperature endurance.
Basalt fiber has a higher melting point than glass fiber, making it more resistant to high temperatures. Basalt fiber can withstand temperatures up to 1000° C, while glass fiber typically has a lower temperature resistance of around 450-500° C. This makes basalt fiber ideal for applications where high-temperature resistance is critical, such as in the automotive and aerospace industries.
Basalt fiber is known for its excellent strength and stiffness properties, which are comparable to or even superior to those of glass fiber. Basalt fibers have a high tensile strength and modulus of elasticity, making them suitable for structural applications where high strength-to-weight ratio is important.
Basalt fiber exhibits better resistance to acidic and alkaline environments compared to glass fiber. This characteristic makes basalt fiber suitable for applications where exposure to harsh chemicals is a concern, such as in marine and chemical processing industries.
Basalt fiber is considered a more environmentally friendly alternative to glass fiber. The production of basalt fiber requires less energy and resources compared to glass fiber manufacturing. Additionally, basalt fiber is non-toxic and recyclable, contributing to its eco-friendly profile.
| Fiber Diameter (µm) | Linear Density (tex) | TPM (Twists Per Meter) |
| 6 | 16.5 / 33 / 50 / 66 ~ 200 | 20 ~ 300 |
| 7 | 11 / 22 / 44 / 66 / 88 ~ 600 | |
| 9 | 33 / 66 / 100 ~ 600 | |
| 11 | 100 / 200 / 300 ~ 600 | |
| 13 | 132 / 264 / 396 ~ 660 |