FIBROX develops and supplies an engineered mineral fiber as a base ingredient for composite materials. Produced from high purity mineral ores in an electric arc furnace, the precisely designed fiber is used as a reinforcing material in a variety of composite end-uses including friction materials; quality plastics; paints; caulks and sealants.

Two versions of this world class engineered fiber are available: FIBROX 300 MX and FIBROX 030 MX with fiber indexes of 65% and 97% respectively. Additionally, some application specific surface treatments can be integrated into the process.

Typical Physical Properties
Color	Off White
Aspect Ratio	200-400
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)	.5 to 2 mm
Non-Fibrous Material (Shot Content): 300 MX	35% average by weight
Non-Fibrous Material (Shot Content): 030 MX	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)

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
Friction Materials Gaskets Plastics Paints Caulks and Sealants	» » » » »	Reinforcement / Wear Heat Resistance Shape Retention Coverage and Coating Strength Heat resistance and viscosity modifier