Unidirectional Basalt fiber fabrics

Basalt fiber is a material made from extremely fine fibers of basalt, which is composed of the minerals plagioclase, pyroxene, and olivine. It is similar to fiberglass, having better physic mechanical properties than fiberglass, but being significantly cheaper than carbon fiber. It is used as a fireproof textile in the aerospace and automotive industries and can also be used as a composite to produce products such as camera tripods and tennis rackets.

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List of UD Basalt fiber fabrics

Weight (GSM) Weave Tensile Intensity Tensile Modulus Elongation Thickness Width
Mpa Gpa % mm mm
280 Unidirection ≥2800 ≥85 ≤ 3.2 0.1 60
300 Unidirection ≥2800 ≥85 ≤ 3.2 0.108 60
350 Unidirection ≥2800 ≥85 ≤ 3.2 0.125 60
  • 1.27m and 1.5m widths also available
  • MOQ is 100m for in-stock items and 200m for non-stock.

Properties of Basalt Fibers

The table refers to the continuous basalt fiber specific producer. Data from all the manufacturers are different, the difference is sometimes very large values.

Property Value
Tensile strength 2.8–3.1 gpa
Elastic modulus 85–87 gpa
Elongation at break 3.15%
Density 2.67 g/cm³

Comparison with other materials

Material Density
(g/cm³)
Tensile strength
(gpa)
Specific strength Elastic modulus
(gpa)
Specific
modulus
Steel rebar rebar 7.85 0.5 0.0637 210 26.8
A-glass 2.46 2.1 0.854 69 28
C-glass 2.46 2.5 1.02 69 28
E-glass 2.60 2.5 0.962 76 29.2
S-2 glass 2.49 4.83 1.94 97 39
Silicon 2.16 0.206-0.412 0.0954-0.191
Quartz 2.2 0.3438 0.156
Carbon fiber (large) 1.74 3.62 2.08 228 131
Carbon fiber (medium) 1.80 5.10 2.83 241 134
Carbon fiber (small) 1.80 6.21 3.45 297 165
Kevlar K-29 1.44 3.62 2.51 41.4 28.7
Kevlar K-149 1.47 3.48 2.37
Polypropylene 0.91 0.27-0.65 0.297-0.714 38 41.8
Polyacrylonitrile 1.18 0.50-0.91 0.424-0.771 75 63.6
Basalt fiber 2.65 2.9-3.1 1.09-1.17 85-87 32.1-32.8

Application of Basalt fiber

  • Heat protection
  • Friction materials
  • Windmill blades
  • Lamp posts
  • Ship hulls
  • Car bodies
  • Sports equipment
  • Speaker cones
  • Cavity wall ties
  • Rebar
  • Load bearing profiles
  • CNG cylinders and pipes
  • Absorbent for oil spills
  • Chopped strand for concrete reinforcement
  • High pressure vessels (e.g. tanks and gas cylinders)
  • Pultruded rebar for concrete reinforcement (e.g. for bridges and buildings)

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