Physical properties |
pH |
8 - 9.5 |
Water soluble (BS 1765) |
0.5% maximum |
Hardness (Moh) |
2.5 |
S.G. |
2.85 |
Oil Absorption |
50-70% |
Reactivity |
Inert |
Colour |
Off white, pearlescent |
Refractive Index |
1.58 |
Phericity Factor |
0.01 |
Melting Point |
1200 deg C |
|
PRODUCTS
OPTIMICA
Description
Aluminium - potassium silicate flakes produced from dry grinding of muscovite ore.
|
 |
Uses
Paints, cosmetics, coatings, insulations, welding electrodes, tyres, dusting agant, inert industrial fillers.
Chemical Analysis (%)
|
SiO2 |
 44.8%
|
Fe2O3 |
2.6% |
Other |
< 0.1% |
Al2O3 |
35.3% |
Na2O |
0.5% |
LOI (@ 1000 deg C) |
4.6% |
K2O |
10.1% |
MgO
|
1.0% |
|
|
Tyoical Size Grading(%)
|
Flake |
Coarse |
Medium |
Fine |
Powder |
|
|
20 #
|
40 # |
60 # |
300 # |
- 25mm |
-1.0 mm |
- 0.425 mm |
-0.25 mm
|
- 0.150 um |
(Nominal)
|
+0.1 mm |
+ 0.045 um |
+0.045 um |
|
BACK |
