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High thermal stability up to 800 °C, suitable for high-temperature ceramic and enamel applications.
Excellent lightfastness and weather resistance, ensuring long-term color retention under UV exposure.
Non-toxic and heavy-metal-free formulation compliant with global regulatory standards (RoHS, REACH).
Consistent particle size distribution for uniform dispersion and optimal opacity in demanding matrices.
Chemically inert in alkaline and mildly acidic environments, enhancing compatibility with cementitious and plaster systems.
Ceramic glazes and underglaze decorations for sanitaryware and tableware.
Architectural concrete and precast concrete elements requiring durable earth-tone coloring.
High-performance architectural coatings and façade paints exposed to harsh outdoor conditions.
Fire-resistant intumescent coatings and heat-resistant industrial finishes.
Colored glass frits and vitreous enamel coatings for appliances and signage.
| Chemical Type | Iron-based mixed metal oxide (Fe–Mn–Al spinel) |
| Product Form | Fine, free-flowing powder |
| Appearance | Uniform reddish-brown powder |
| Primary Applications | Ceramics, concrete, architectural coatings, enamels, fireproofing materials |
| Key Features | Thermal stability, UV resistance, non-toxicity, alkali resistance |
| Specific Surface Area (BET) | 8–12 m²/g |
| LOI (Loss on Ignition, 1000 °C) | <1.5 wt% |
| Heavy Metals Content | Compliant with EN 71-3 and ASTM F963 (Pb, Cd, Hg, Cr⁶⁺ < limits) |
Q1: What is the primary chemical composition of Cathay FERROTINT Brown F8400?
A: Cathay FERROTINT Brown F8400 is a mixed metal oxide pigment based predominantly on iron and manganese oxides, engineered to deliver stable brown coloration with high thermal and lightfastness.
Q2: Is this pigment suitable for use in food-contact plastics or coatings?
A: Cathay FERROTINT Brown F8400 is an inorganic pigment designed for general industrial applications. While it meets common regulatory expectations for heavy metal limits in many non-food-contact uses, formal approval for food-contact applications requires validation against applicable regional regulations and end-product testing by the formulator.
Q3: How does F8400 perform under high-temperature processing conditions?
A: This pigment exhibits excellent thermal stability and is routinely used in polymer processing operations such as injection molding and extrusion, where melt temperatures commonly exceed 200 °C. Its inorganic nature ensures minimal color shift or decomposition under typical industrial thermal stress.
Q4: Can F8400 be dispersed in water-based systems without special additives?
A: As a surface-treated inorganic pigment, F8400 offers improved wettability in both aqueous and solvent-based media. However, optimal dispersion in water-based systems typically benefits from standard dispersants or surfactants compatible with the specific binder and pH environment.
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