alumina powder for refractory coating

high temperature alumina: 1.Usage:refractories;ceramics;polishing;etc 2. Al2O3: 99.5% min 3.high temperature 1500 degree

1. Physical properties:

 The product is white powder,uniform of particle size,easy to dispersion,stable of chemical performance,moderate 

in high temperature shrinkage and excellent sintering properties.    

2.Function characteristics:

  The product is the basic raw material in the production of heat-resisting product,abrasion-resisting products and decay resistance products such as for producing the high alumina refractories, high-strength ceramics, automobile spark plugs and  high-grade abrasive materials.

3.Parameters:

Index	AL2O3	SiO2	Fe2O3	Na2O	loss on ignition	Density	α-AL2O3	Grain (D50)
Unit	%	%	%	%	%	g/ml	%	μm
Technical Data	≥99.4	≤0.20	≤0.04	≤0.3	≤0.20	≥3.95	>93	0.6-3.0

alumina powder for refractory coating