Basalt roving

Reinforcing fiber with unique properties

Eco friendly and highly chemical resistant material
with exceptional physical and mechanical properties.

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What is basalt roving?

Basalt roving is a bundle of continuous unidirectional basalt filament yarn.

Due to unique physical, chemical, and mechanical properties, roving can be used in aggressive environments, exposed to high temperatures, mechanical vibrations or impacts, providing strength and durability to the components and structures.

The properties of basalt roving much surpass E-glass, and are comparable with carbon fiber performance. However, basalt roving has a competitive price, thus it is effectively applied to manufacture composite materials on the industrial scale.


  • Filament diameter – 9-17 micron;
  • Linear density – 600 – 4800 tex;
  • Tenacity ≤ 650 мN/tex
  • Tensile strength in epoxy impregnated strand (ASTM D2343), 2900 – 3300 МPa;
  • Tensile modulus in epoxy impregnated strand (ASTM D2343) 80 – 95 GPa;
  • Temperature range, from -260 up to +700C;
  • Elongation before breaking, 3,5%;
  • Type of sizing – silane;
  • Sizing content < 1%;

Benefits of basalt roving

High strength and durability

low volume weight

thermal stability and non-combustibility

resistance to aggressive environments

Application of basalt roving

  • Manufacture of basalt fabrics, tapes, and prepregs

  • Reinforcement of structural plastics

  • Manufacture of basalt composites, in particular by pultrusion process

  • Manufacture of basalt composites by filament winding process

  • Construction of hydraulic structures, petrochemical facilities

  • Construction of municipal facilities

  • Manufacture of paving flagstone, concrete and plaster small architectural forms

Fields of application

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Frequently asked questions

Continuous basalt fiber is made by melting igneous basalt rock. It is an environmentally friendly material because no chemical additives are used to manufacture basalt fiber. It has high strength, resistance to aggressive environments, temperature stability, low electrical conductivity, and hygroscopic properties.

Savings in the construction process occurs when diameters are replaced with smaller ones according to the strength properties (tensile strength of basalt composites is higher than that of metal), lower cost of transportation and unloading, as well as optimization of assembling due to the light weight. In addition, basalt rebar does not corrode or conduct heat, it has hygroscopic properties and therefore basalt rebar reinforced concrete structures are more durable.

Basalt fiber as a reinforcing material is perfectly suited for road construction and repair, namely reinforcement of asphalt concrete and strengthening the road beds with basalt fiber and basalt grid, providing strength and durability for the roadway.

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