Synthetic Brown Iron Oxides from Cathay Industries are high-quality inorganic color pigments suitable for a wide range of demanding colorant applications. Typical applications include concrete block pavers, concrete bricks, paving slabs, roof tiles, architectural masonry, ready mix concrete, mortars, walling blocks and asphalt.
CATHAYGRAN™ Brown series ranges from Light Brown F8150GS to Dark Brown F8860GS. The granular structure provides a free-flowing, low dusting Pigment with high dispersing properties. As with all Cathay Industries products the CATHAYGRAN™ Iron Oxides are produced to strict quality tolerances. Our products yield reliable performance properties which offer outstanding light fastness, curing stability, opacity, chemical resistance, alkali resistance, heat stability, exterior durability and compatibility.
| Properties | Description |
| Appearance | Brown Powder |
| Chemical Composition | Fe2O3, Fe2O3.H2O, Fe3O4 |
| Particle Shape | Granule |
| Pigment Index | Red 101, Yellow 42, Black 11 |
| Color Index | 77491, 77492, 77499 |
| CAS No. | 1309-37-1, 51274-00-1, 1317-61-9 |
| Grey cement* |
| White cement* |