By melting high purity mineral ores in an electric arc furnace, FIBROX has developed synthetic, clean mineral fibers that meet and exceed the demands of today’s sophisticated applications. Two versions of this world-class fiber are available: FIBROX 300 and FIBROX 030 with fiber indexes of 65% and 97% respectively. Both products are available in bales and bags.

The white color, high fiber content (low shot) and temperature operating range of FIBROX fiber make it an excellent alternative to ceramic refractory, glass, aramid and other mineral fibers.

Applications include: chimney insulation; high temperature gaskets; composite reinforcement applications (friction materials, coating, FRP, etc.) and refractory products (high temperature paper, mat and vacuum formed shapes).

Typical Physical Properties
Color	Off White
Aspect Ratio: 300 Fiber	+1000
Aspect Ratio: 030 Fiber	+500
Density	2.7 - 2.9 GMS/CC
Hardness	6.0 Mohs
Fiber Diameter	5 - 6 Microns, by population
Fiber Diameter Range	1 - 20 Microns
Fiber Length (Average): 300 Fiber	4 - 8 mm
Fiber Length (Average): 030 Fiber	2 - 4 mm
Non-Fibrous Material: 300 Fiber	35% average by weight
Non-Fibrous Material: 030 Fiber	3% average by weight
Fiber Tensile Strength	80,000 psi
Fiber Tensile Modulus	1.5 - 6 x 106 psi
Refractive Index	1.62 - 1.64
Shrinkage	2.4% at 1600°F (871°C)
Devitrification Temperature	above 1550°F (843°C)
Melting Point	above 2000 °F (1093°C)
Operating Temperatures	up to 1500°F (815°C)
pH Value	7.75-8.00

Typical Chemical Composition
Silica	40 - 50%
Calcium	15 - 25%
Alumina	10 - 16%
Magnesia	5 - 10%
Other	6 - 10%
Range for Major Oxides

Typical End Uses
Chimney Insulation High Temperature Gaskets Asphalt Reinforcement (SMA) Soil Conditioning	Friction Materials High Temperature Vacuform Shapes Refractory Applications