Product name:  Alumina polishing powder, White fused alumina, Alumina polishing compound, Alumina polishing abrasives.
Material: White alumina

WA is a fused white alumina abrasive powder produced by crushing fused alumina and sorting the particles into a uniform size. The resulting compound has the following characteristics:
 
An α‑type corundum crystal configuration
At least a 96.0% pure aluminum oxide (Al2O3) composition
A hardness nearly equal to silicon carbide
A closely controlled particle-size distribution
A consistent particle shape
These characteristics make WA a superb choice for high-level surface polishing and as a material in items such as:
 
Super-finishing precision grindstones
Super-finishing lapping cloth or paper
Lapping tape for super-precision surface finishing
Precision lapping of materials such as metals, quartz crystal, and semiconductor having low tensile strength
Other characteristics of WA include:
 
Chemically inert
Able to bear high temperatures
Extremely high insulation characteristics
Very consistent in its reaction to organic matter
Widely used as a high-grade filler for epoxy-resin insulators
Standard Specifications for Particle Size
 
 Specs:

PART NUMBER	D50(um)
JRAP08	0.1
JRAP09	0.2
JRAP10	0.3
JRAP20	0.5
JRAP30	0.5-0.7
JRAP40	1.2±0.3
JRAP50	2±0.4
JRAP60	3±0.4
JRAP70	4±0.5
JRAP80	5.5±0.6
JRAP90	7±0.5
JRAP100	8.4±0.6
JRAP101	9.9±0.8
JRAP102	11.9±1
JRAP103	14.7±1
JRAP104	18±1
JRAP105	21.1±1.5
JRAP106	26.4±2
JRAP107	30.9±2
JRAP108	36.1±2
JRAP109	41.1±2.5
JRAP110	49.4±2.5
JRAP111	58.6±3
JRAP112	70±3

Applications:
Precision Coating Reinforcing Agent, Precision Coated Polishing Cloth, Super Finishing Rubber Grindstone, Crystal Lapping, Super Finishing Vitrified Grindstone, Super Finishing Silicate Grindstone, Super Finishing Phenol Bond Grindstone, Soft Metals Lapping, super finishing, GaAs Lapping, precision lapping, GaP Lapping, Precision Coated Polishing Tape, Precision Coated Polishing Paper, Fine Alumina Ceramics, Filler for Heavy Electrical Machinery Parts
 
Type:
Precision Coating Materials, Super Finishing Grindstone Materials, Filler Materials, abrasive powder, Precision Lapping Materials, Fine Ceramics Materials