Basalt is a naturally occurring volcanic rock composed chiefly of plagioclase, pyroxene, and olivine.  It is very hard, dense, and dark-brown to black in color, often having a glassy appearance. Under extreme heat and pressure, Basalt rock can be formed into continuous filaments through a specialized drawing process.  The resulting continuous basalt filaments can be combined as rovings, staple fibers or twisted yarns which can be further processed into a wide array of fabrics.

Basalt vs. E-Glass

  • 25% higher tensile strength
  • 15% higher tensile modulus
  • 100°C higher operating temperature
  • Better chemical resistance
Basalt fabric, fire blocking performance
Basalt filaments, fabrics, fire barriers, spark and weld protection

Basalt fabrics are typically used in place of fiberglass or carbon fiber and are ideally suited for applications requiring high mechanical strength, resistance to high temperature and chemicals.  Basalt fabrics regularly outperform standard E-glass in demanding applications and are close in performance to specialty fibers like S-glass, carbon, chemical resistant glass, silica but at a fraction of the cost.

Albarrie’s woven basalt fabric is typically used as reinforcement for multi-layered fabrics and composite materials.  Applications include but are not limited to fire barriers, thermal & acoustic insulation materials, spark & weld protection materials, filtration materials, and composites for boat building, wind turbines, sporting goods and more.

APPLICATIONS


FILTRATION MEDIA

FILTRATION MEDIA

Basalt supported filtration media are ideally suited for applications involving high temperatures, spark potential, or aggressive chemicals.   Combined with other inherently fire retardant fibers, these filtration materials offer high performance filtration of flue gases from furnaces, kilns and more…  Products:  Meteor® & Tandem® Filtration Media. Click HERE for more information.

FIRE PROTECTION

FIRE PROTECTION

Albarrie’s basalt fabrics can be integrated into the construction of multilayer materials to provide enhanced fire blocking performance.

SPARK & WELD PROTECTION

SPARK & WELD PROTECTION

Welding curtains, blankets, safety apparel and other welding materials can utilize basalt fabrics in place of fiberglass for enhanced spark protection.

THERMAL & ACOUSTIC INSULATION

THERMAL & ACOUSTIC INSULATION

The high temperature resistance of basalt fabrics makes them attractive for high temperature thermal and acoustic insulation materials.  In high performance automotive applications, basalt fabrics can be integrated into insulation materials and wraps found under the hood and around exhaust systems to enhance system performance or protect critical components from heat exposure.

Composite Materials

Basalt fabrics are compatible with most epoxy resins and are used in place of fiberglass or carbon fiber for reinforcement of composite materials. Features include: easily wets out, will not corrode, high operating temperature, high tensile to weight and excellent chemical resistance.

COMPARISON OF BASALT AND E-GLASS COMPOSITE MATERIALS


PROPERTIESSI UNITSBASALT COMPOSITE E-GLASS COMPOSITE
FAILURE LOADkN46
ULTIMATE STRENGTH MPa579207
ELASTIC MODULUS GPa3417
POISSON'S RATIO0.193
APPLICATION TEMPERATURE°C-60 to 560°C-60 to 460°C

Composite materials were produced consisting of 5 piles of woven fabric impregnated with an epoxy resin by resin transfer molding.  The resulting composite was roughly equal to a [0°/90°] laminate. The resin used was Shell EPON-862 with curing agent W. The fiber volume in the composite was approximately 44%.

ORDERING INFORMATION


DESCRIPTION STYLEWEIGHTWEAVE TYPECOUNTROLL WIDTH
BASALT WOVEN FABRIC 4770740gsm (22opsy)
twill 3/1119/78157, 172cm

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