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UV-stabilized iron oxide pigment engineered for exceptional lightfastness and weather resistance in demanding outdoor applications.
Non-bleeding, non-migrating formulation ensures color integrity in polymer matrices and coating systems.
Optimized particle size distribution for high tinting strength and uniform dispersion in aqueous and solvent-based systems.
Low heavy metal content compliant with global regulatory frameworks including EU REACH and US CPSIA.
Thermally stable up to 250 °C, suitable for high-temperature processing such as engineering plastic compounding.
Exterior architectural coatings and façade paints requiring long-term color retention.
Automotive OEM and refinish coatings for metallic and solid color finishes.
Polyolefin and PVC profiles used in window frames, cladding, and fencing.
Engineering thermoplastics including polyamide (PA) and polybutylene terephthalate (PBT) for automotive under-hood components.
High-performance industrial maintenance coatings for infrastructure and marine environments.
| Chemical Type | Synthetic Iron Oxide (α-Fe₂O₃) |
| Product Form | Free-flowing dry powder |
| Appearance | Red-brown fine powder |
| Primary Applications | Coatings, Plastics, Construction Materials |
| Key Features | UV-resistant, non-bleeding, thermally stable, low dust |
| Benefits | Long-term color stability, excellent dispersion, regulatory compliance |
| pH (10% aqueous suspension) | 6.5 – 8.0 |
| Volatile Matter (105 °C, 2 h) | ≤ 1.0 wt% |
Q1: What is the primary functional advantage of Hostatint UV R compared to standard iron oxide pigments?
A: Hostatint UV R is specifically engineered for enhanced UV stability in demanding applications such as outdoor coatings, automotive refinishes, and UV-curable inks—where conventional iron oxides may undergo photochemical degradation or color shift over time.
Q2: Is Hostatint UV R suitable for use in UV-curable systems?
A: Yes—it is formulated to be compatible with free-radical and cationic UV-curable resins, including acrylates and epoxy novolacs, and demonstrates low interference with photoinitiator efficiency under typical curing conditions.
Q3: How does Hostatint UV R perform in terms of dispersibility and rheology control?
A: It features a surface treatment optimized for rapid, stable dispersion in both solvent-borne and high-solids systems, helping to minimize viscosity increase and support consistent color development without excessive grinding effort.
Q4: Can Hostatint UV R be used in food-contact coatings?
A: While the pigment itself is based on iron oxide—a substance permitted in certain food-contact applications—the final regulatory compliance depends on full formulation assessment, end-use conditions, and applicable regional requirements; consult Clariant’s regulatory documentation and qualified safety experts before use.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
