SiO2: 55-65%;

Al2O3: 26-35%;

Particle size: 20-400um (99% min);

Specify Density: 0.4 - 0.8 g/cm3;

Floating: 95% min;

Compressive Strenght: 2500-5000 psi

Surface Moisture:1 % max

Melting Point: 1450 C

Fe2O3:0.2-1%

TiO2: 0.5-2%

CaO: 0.2-0.6 %

MgO: 1.0-2.0 %

K2O:0 .5-4.0%

C: 0.01-2%

Applications: Widely used in building material, plastics, oil field, paint&coating, automobile, air craft;

 Packing: in 25kg paper bags,then in big bags or on pallets.