Sulfex ROSSO (RED)
It is the most widespread product used in manufacturing of resin bonded grinding wheels.
| S | min 48 % |
| Fe | min 42 % |
| Specific Density | 4.60 - 4.90 g/cm3 (20°C) |
| H2O (Weight Loss at 105°C) |
ax 0.5 % |
| Bulk density | 1.4 – 1.8 g/cm3 |
| pH | 4 – 7 |
| D50 | max 25 μm |
| D90 | max 65 μm |
SULFEX ROSSO pH controllato
(pH under control)
SULFEX ROSSO (Red) with higher pH stability, to maintain a higher shelf-life of the product even in extreme weather conditions, high humidity and temperature, especially during export by sea freight by container
| S | min 50 % |
| Fe | min 44 % |
| Specific Density | min 4.65 g/cm3 (20°C) |
| H2O (Weight Loss at 105°C) |
max 0,3 % |
| Bulk density | 1.4 – 1.7 g/cm3 |
| pH | 5 – 7 |
| D50 | 13 - 18 μm |
| D90 | max 60 μm |
(Iron Disulphide, FeS2)
SULFEX ROSSO ( Red) with high stability at high temperature, use d mainly for in manufacturing of resin bonded grinding wheels through hot press moulding and for all the application where higher stability is required
| S | min 50 % |
| Fe | min 44 % |
| Specific Density | min 4.65 g/cm3 (20°C) |
| Volatile matter (Weight Loss at 180°C) |
max 0.45 % |
| Bulk density | 1.8 – 2.2 g/cm3 |
| pH | 5 – 7 |
| D50 | 13 - 18 μm |
| D90 | max 60 μm |
Sulfex GIALLO (yellow)
(Iron Disulphide, FeS2)
Higher size, used mainly in in manufacturing of resin bonded grinding wheels, alone or mixed with Sulfex Red
| S | min 48 % |
| Fe | min 42 % |
| H2O (Weight Loss at 105°C) |
max 0.5 % |
| Bulk density | 1.4 – 1.7 g/cm3 |
| pH | 4 – 7 |
| D50 | max 125 μm |
| D90 | max 300 μm |
Sulfex BLU (Blue)
(Iron Disulphide, FeS2)
Used in manufacturing of large size resin bonded abrasives mixed with Sulfex Yellow and Sulfex Red
| S | min 45 % |
| Fe | min 35 % |
| H2O (Weight Loss at 105°C) |
max 0.5 % |
| Bulk density | min 1.8 g/cm3 |
| pH | 4 – 7 |
| < 106 micron | max 30 % |
| > 425 micron | max 20 % |
PYRICAL
Special filler mineral based
It’s a special mixture of minerals, fit to be used as active filler for in manufacturing of resin bonded grinding wheels especially used when a pH value between 6 and 8 is required; it is perfect for resin polymerization.
| S | min 30 % |
| Fe | min 25 % |
| Ca | min 5 % |
| H2O (Weight Loss at 105°C) |
max 0.5 % |
| Bulk density | 1.0 – 1.4 g/cm3 |
| pH | 6 – 8 |
| D50 | max 25 μm |
| D90 | max 65 μm |
