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Description
Cobalt Aluminate Blue Spinel Nanopowder (CoAl₂O₄)
Purity: Industrial Grade | Particle Size: 300–500 nm | Appearance: Blue Powder
Technical Properties:
| Property | Value |
|---|---|
| Particle Size | 300–500 nm |
| Appearance | Blue Powder |
| Density | 4.3 g/cm³ |
| pH | 7.5 |
| Oil Absorption | 25 g/100 g |
| Heat Fastness | ≥ 1000 °C |
| Light Fastness | ≥ 8 (Excellent) |
| Acid Fastness | ≥ 5 |
| Alkali Fastness | ≥ 5 |
| Pigment Index Number | PB28 77346 |
Product Description:
Cobalt Aluminate Blue Spinel (CoAl₂O₄) nanopowder is a highly stable blue pigment formed via high-temperature calcination of cobalt(II) oxide and aluminum(III) oxide. The spinel structure delivers exceptional chemical inertness, UV and thermal stability, and long-lasting color retention. Modifiers such as MgO, ZnO, Li₂O, or TiO₂ may be included in small amounts to enhance specific properties.
This pigment is well-regarded for its excellent hiding power, resistance to chemical attack, and non-migratory behavior, making it suitable for applications requiring long-term durability in extreme conditions.
Key Applications:
IR-Reflective Plastics:
PVC profiles (siding, window frames)
Automotive interiors (dashboards, upholstery)
Plastic roofing tiles
Single-ply roofing membranes
Cool Coating Systems:
Reflective coil coatings
Heat-managing exterior façade paints
Automotive topcoats
Roofing shingles and sports surfaces
Construction & Building Materials:
Cementitious stuccos, mortars, grouts
EIFS (Exterior Insulation and Finish Systems)
Ready-mix and precast concrete products
Why Choose CoAl₂O₄ Nanopowder?
Extreme thermal and UV stability
Chemically inert and weather-resistant
Intense, long-lasting blue color
Broad compatibility with resins, polymers, cement, and coatings
Additional information
| Gram | 25 g, 100 g, 500 g, 1000 g |
|---|