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High chroma and excellent color strength in reddish-brown shades.
Outstanding lightfastness and weather resistance for long-term outdoor performance.
Good dispersibility in both aqueous and solvent-based systems.
Low oil absorption enabling high pigment loading and efficient formulation.
Consistent batch-to-batch quality with tight particle size distribution.
Architectural coatings including exterior masonry and stucco paints.
Industrial maintenance coatings for bridges, pipelines, and structural steel.
Cementitious products such as colored concrete, pavers, and roof tiles.
Plastic masterbatches for construction profiles and outdoor applications.
Specialty inks for packaging and industrial labeling requiring UV stability.
| Chemical Type | Synthetic iron oxide (α-Fe₂O₃) |
| Product Form | Dry powder |
| Appearance | Free-flowing reddish-brown powder |
| Primary Applications | Coatings, construction materials, plastics |
| Key Features | Lightfast, weather-resistant, low oil absorption |
| Heat Stability | Up to 250 °C (short-term) |
| pH (10% aqueous suspension) | 6.5 – 8.5 |
| Volatile Matter (105 °C, 2 h) | ≤ 1.0 wt% |
Q1: What is the primary chemical composition and crystal structure of BASF L1916?
A: BASF L1916 is a synthetic iron oxide pigment based predominantly on hematite (α-Fe₂O₃), offering high coloristic consistency and excellent thermal stability. Its crystalline structure contributes to strong UV resistance and long-term color retention in demanding applications.
Q2: Is BASF L1916 suitable for use in polymer masterbatches, and which thermoplastics does it perform well with?
A: Yes, BASF L1916 is widely used in polymer masterbatches for thermoplastics such as polyolefins (PP, PE), PS, ABS, and engineering plastics like PA and PC. It demonstrates good dispersibility, minimal plate-out tendency, and retains color strength during melt processing at typical extrusion temperatures.
Q3: How does BASF L1916 compare to other red iron oxide pigments in terms of tinting strength and weatherfastness?
A: BASF L1916 delivers higher tinting strength and improved chroma compared to conventional red iron oxides due to its optimized particle size distribution and surface characteristics. It also exhibits superior weatherfastness, particularly in outdoor applications where resistance to UV degradation and atmospheric pollutants is critical.
Q4: Can BASF L1916 be used in food-contact or pharmaceutical packaging applications?
A: BASF L1916 is not certified for direct food-contact applications under global regulatory frameworks. For packaging or pharmaceutical uses, customers must conduct full regulatory assessment—including compatibility testing and migration evaluation—based on their specific formulation, processing conditions, and end-use requirements.
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E-mail: wangxingqiang@ericwchem.com
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