Micaceous Iron Oxide
Micaceous iron oxide (iron oxide, Fe2O3) is a naturally occurring iron oxide with lamellar shape similar to mica (hence the name). Micaceous iron oxide is characterised by:
- Black colour
- Lamellar structure
- High inertness in various media (the iron in the mineral has already been oxidised).
Basic properties
| Property | Value | Unit |
| Moisture | 0.1 | [%] |
| pH | 9 | [-] |
| Hardness (Mohs) | 6 | [-] |
| Electrical conductivity | 60 | [µS/ cm] |
| Colour | black | [-] |
| Lamellarity | > 70 | [%] |
| Soluble matter | < 0.1 | [%] |
| L.O.I. | 0.6 | [%] |
| Density | 4.7 | [kg/ dm3] |
Product overview
| Product | Grade | + 63 µm
[%] |
+ 75 µm
[%] |
+ 125 µm
[%] |
OA
[g/ 100 g] |
| Portafer | AP65 | 3.7 | 1.6 | – | 17 |
| AP75 | 12.5 | 5.0 | – | 15 |
Production location Portafer AP
Application
MIO will provide:
- Abrasion resistance: due to its hardness of 6 on Mohs scale, MIO will increase the coating’s resistance to wear.
- Chemical resistance: due to its lamellar structure and inert nature, MIO will provide barrier properties to the primer and topcoat, and good chemical resistance compared to conventional fillers.
- Mechanical reinforcement: due to its lamellar structure, MIO will mechanically reinforce the binder matrix.
- UV resistance: being insensitive to UV radiation, MIO will reduce the coating’s degradation.
Durability
Mechanical reinforcement
