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High thermal stability up to 800 °C, maintaining color integrity under elevated processing temperatures.
Excellent lightfastness and weather resistance, ensuring long-term color retention in outdoor applications.
Non-toxic and heavy-metal-free formulation, compliant with global regulatory standards including EN 71-3 and RoHS.
Superior dispersibility in aqueous and solvent-based systems, enabling efficient pigment incorporation with minimal grinding energy.
Consistent batch-to-batch color strength and hue, supported by strict in-house quality control and ISO 9001-certified manufacturing.
Ceramic glazes and engobes for architectural tiles and sanitaryware.
High-performance architectural coatings and façade paints.
Concrete and mortar colorants for precast and ready-mix applications.
Plastic coloration for construction profiles, outdoor furniture, and industrial components.
Specialty inks for packaging and decorative laminates requiring heat stability.
| Chemical Type | Natural ochre-derived iron oxide (α-Fe₂O₃ based) |
| Product Form | Fine dry powder |
| Appearance | Free-flowing reddish-brown powder |
| Primary Applications | Coatings, ceramics, concrete, plastics, inks |
| Key Features | Heat stable, lightfast, non-hazardous, low oil absorption |
| Benefits | Color consistency, regulatory compliance, easy dispersion, low volatility |
| pH (5% aqueous slurry) | 6.5 – 7.5 |
| Volatile Matter (105 °C, 2 hrs) | ≤ 0.5 wt% |
Q1: What is the primary chemical composition of Cathay Hoover 110NO Ochre?
A: Cathay Hoover 110NO is a synthetic iron oxide-based inorganic pigment, primarily composed of hydrated iron(III) oxide (Fe₂O₃·nH₂O), formulated to deliver consistent ochre hue, high opacity, and excellent thermal stability.
Q2: Is this pigment suitable for use in exterior architectural coatings?
A: Yes — 110NO exhibits outstanding UV resistance, weatherfastness, and alkali stability, making it well-suited for exterior latex paints, stucco, and cementitious systems where long-term color retention under harsh environmental exposure is required.
Q3: How does 110NO perform in high-temperature processing applications?
A: As a thermally stable inorganic pigment, 110NO maintains its color integrity and structural integrity up to approximately 800 °C, supporting use in ceramic glazes, refractory coatings, and thermoset plastics processed at elevated temperatures.
Q4: Can this pigment be dispersed in both water-based and solvent-based systems?
A: Yes — 110NO is surface-treated for broad compatibility and can be effectively dispersed in aqueous polymer dispersions as well as common organic solvents and resin solutions, though optimal dispersion typically requires appropriate wetting agents and mechanical energy input.
Q5: What is the typical dosage range when using 110NO in industrial coatings?
A: Dosage depends on the desired shade intensity and film thickness, but 110NO is generally used at low concentrations — typically ranging from 0.1% to 2% by weight relative to the total formulation — due to its high tinting strength and hiding power.
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