PROFESSIONAL PIGMENT MANUFACTURER
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Brand
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Fineland Chem
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Color Index
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Pigment Red 166
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Color Index No
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20730
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CAS No
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3905-19-9
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EC No
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223-460-6
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Chemical Group
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Azo compound
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| Chemical Formula | C₄₀H₂₄Cl₄N₆O₄ |
Pigment Red 166 (PR166) is a high-performance organic pigment widely used in coatings, plastics, and industrial coloring applications. It offers a clean bluish-red shade, high color strength, and excellent resistance to heat, light, and weathering.
Compared with conventional organic red pigments, Pigment Red 166 provides improved durability and long-term color stability, making it suitable for demanding applications such as industrial coatings, powder coatings, and engineering plastics.
PR166 – DuraPlast®3566 ⬇️TDS
It is a yellowish-red organic pigment offering excellent heat and migration resistance, ideal for Plastic, PP, PE, PVC,Rubber,PS etc.
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Test Item
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Specification
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Density (g/cm³ )
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1.57
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Specific Surface Area(m²/g)
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26-38
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Oil Absorption (g/100g)
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38-45
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PH Value
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6.7-7.5
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Bulk Density (lb/gal)
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13.4-15.8
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Total impurities (ppm)
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≤600
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| Heat Resistance (℃) | 300 | Alkali Resistance (1-5) | 5 |
| Light Resistance (Full Shade, 1-8) | 8 | Migration Resistance(1-5) | 5 |
| Light (Reduced tinting, 1-8) | 7 | Ethyl Acetate (1-5) | 5 |
| Weather Resistance (1-5) | 5 | Ethanol (1-5) | 5 |
| Acid Resistance (1-5) | 5 | MEK (1-5) | 5 |
Pigment Red 166 is commonly used in the following applications:
Its excellent durability makes it suitable for both indoor and outdoor industrial applications where long-term color retention is required.
Pigment Red 166 maintains stable color performance during high-temperature processing, making it suitable for engineering plastics and powder coating systems.
The pigment provides outstanding resistance to UV exposure and weathering, supporting long-term outdoor durability.
PR166 offers strong tinting strength and excellent color development, enabling efficient pigmentation with consistent shade.
The pigment disperses well in various coating and plastic systems, helping achieve uniform coloration and processing stability.
Its excellent durability makes it suitable for automotive, industrial, and protective coating systems.
The pigment performs well under elevated processing temperatures commonly used in plastics and powder coatings.
Excellent resistance to light and weathering helps maintain color stability during long-term service.
As a high-performance organic pigment, Pigment Red 166 is generally more expensive than standard azo red pigments.
Where long-term durability is not required, more economical pigment alternatives may be suitable.
Optimized dispersion helps achieve the best color development and overall performance.
When selecting Pigment Red 166, buyers should confirm:
Providing detailed application information helps suppliers recommend the most suitable grade and ensures consistent product performance.
Package: 25KG Kraft Bag, 400kg/500kg Carton Box
Lead Time: Normally around 15 days after signed contract.
Fineland Chem is a B2B manufacturer and exporter of high-performance organic pigments for coatings, plastics, and industrial applications.
Products are manufactured under controlled quality systems to ensure consistent shade, reliable dispersion performance, and stable batch-to-batch quality. Technical support and export-oriented logistics services are available for customers worldwide.
It is widely used in industrial coatings, automotive coatings, powder coatings, engineering plastics, and plastic masterbatch.
Yes. It offers excellent lightfastness and weather resistance, making it suitable for long-term outdoor exposure.
Yes. Its high heat resistance makes it suitable for many engineering plastic processing conditions.
Pigment Red 166 generally provides better heat resistance, weather durability, and long-term color stability than conventional azo pigments.
Depending on shade and performance requirements, alternatives may include Pigment Red 214, Pigment Red 254, or other high-performance organic red pigments.
