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An inert rock found worldwide, basalt is the generic term for solidified volcanic lava. Safe and abundant, basalt rock has long been known for its thermal properties, strength and durability.
Until now, spun-fiber production methods have limited its commercial viability. The first producer to offer basalt fibers in a 100 percent mineral, continuous-filament form, bringing this versatile material to a wide range of applications.
An unprecedented combination of properties at lower costs than alternative materials
Superior Thermal Protection
With a thermal range of -260 C to +982 C (1800 F) and melt point of 1450 C, fibers are ideal for fire protection and insulative applications Barriers to Disasters Noncombustible and explosion proof, mats used to encase structural steel can provide unrivaled disaster protection, cost effectively and with no enviromental hazard Environmental Safety
Fibers are 100% natural and inert. They have been tested and proven to be non-carcinogenic and non-toxic. Manmade fibers with a diameter of six microns or less are considered an inhalant hazard Exceptional Durability
Tough and long-lasting,fibers deliver acid, alkali, moisture and solvent resistance surpassing most mineral and synthetic fibers. They are immune to nuclear radiation, UV light, biologic and fungal contamination. Rock-Solid Strength
Fibers and fabrics can take the heat and take a pounding. They're stronger and more stable than alternative mineral and glass fibers, with tenacity that exceeds steel fibers many times over. | COMPARATIVE TECHNICAL CHARACTERISTICS OF FILAMENT
MADE FROM E-GLASS, BASALT AND SILICA
_ | | Properties | SI Units | Basalt Filaments | Fiberglass | Silica
Filament | | Thermal |
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| | Maximum application temperature | (°C) | 982° | 650° | 1100° | | Sustained operating temperature | (°C) | 820° | 480° | 1000° | | Minimum operating temperature | (°C) | -260° | -60 | -170° | | Thermal conductivity | (W/m K) | 0.031-0.038 | 0.034-0.04 | 0.035-0.04 | | Melting temperature | (°C) | 1450° | 1120° | 1550° | | Virtification conductivity | (°C) | 1050° | 600° | 1300°-1670° | | Glow loss | (%) | 1.91 | 0.32 | 1.75 | | Thermal expansion coefficient | (ppm/ °C) | 8.0° | 5.4° | 0.05° | |
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| | Physical/Mechanical |
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| | Density | (g/cm3) | 2.75 | 2.6 | 2.15 | | Filament diameter | (microns) | 9-23 | 9-13 | 9-15 | | Tensile strength | (M Pa) | 4840 | 3450 | 4750 | | Compression | (psi) | 550,000 | 440,000 | 510,000 | | Elastic modulus | (G Pa) | 89 | 77 | 66 | | Linear expansion coefficient | (x10 /K) | 5.5 | 5 | 0.5 | | Elongation at break | (%) | 3.15 | 4.7 | 1.2 | | Absorbtion of humidity (65%RAH) | (%) | <0.1 | <0.1 | <0.1 | | Stability at tension (20 C°) | (%) | 100 | 100 | 100 | | Stability at tension (200 C°) | (%) | 95 | 92 | 94 | | Stability at tension (400 C°) | (%) | 82 | 52 | 80 | |
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| | Acoustics: |
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| | Sound absorbtion coefficient | (%) | 0.9-0.99 | 0.8-0.93 | 0.85-0.95 | |
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| | Electrical: |
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| | Specific volume resistance | (ohm.m) | 1*10x12 | 1*10x11 | 1*10x11 | | Loss angle tangent frequency | (1 MHz) | 0.005 | 0.0047 | 0.0049 | | Relative dielectric permiability | (1 MHz) | 2.2 | 2.3 | 2.3 | |
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| | Chemical Resistance |
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| | % weight loss after 3 hrs boiling in: |
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| | H2O | (%) | 0.2 | 0.7 | 0.05 | | 2n NaOH (Sodium Hydroxide) | (%) | 5.0 | 6.0 | 5.0 | | 2n HCI (Hydrochloric acid) | (%) | 2.2 | 38.9 | 15.7 |
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Materials for the future 
