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  Black Silicon Carbide
  Green Silicon Carbide
  Boron Carbide
  White Aluminum Oxide
  Brown Aluminum Oxide
  Calcined Alumina
  Reactive Grade Alumina
  Polishing Grade Calcined Alumina
   PC 12 - 2
   PN-6 & PN-612
   PN-502 VPC-11
   PN - 505
  Sub Micron Alumina
  Nano Sized Alumina
  Sinterable Silicon Carbide Powders
  Refractory Materials
  Abrasive Media
  Lapping Slurries
  Spherical Media
  Fumed Silica
  Cast Polymer Fillers
  Surplus Raw Materials
   
   
   
   

Calcined Alumina PN 505

The Martinswerk PN - 505 is a soft, fine grained calcined alumina utilized in variety of polishing applications. Specified for polishing agents, pastes, slurries and emulsions for stainless steel , non ferrous metals as well as steel. The PN –505 is often used for fine polishing of plastics, automotive paints and some forms of glass.
 
Typical Analysis
(Al2O3)
99.3 %

(SiO2)

< 0.03 %
(Fe2O3)
< 0.03 %
(Na2O) total
< 0.50 %
(CaO)
< 0.05 %
Alpha Al2O3
> 70 %
Loss on Ignition
< 0.3 %
Specific Surface Area (BET)
8 – 15 m2/g
Primary Crystal Size
0.5 um
Bulk Density
550 kg/m3
 
Typical Particle Size Distribution

0 – 1.0 % max

> 45

 um
d 90 7 - 14 um
d 50 1.5 – 3.2 um
d 10 0.4 –0.8 um
 

 

 

 


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