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Pigment Yellow 42

Brand
Fineland Chem
Color Index
Pigment Yellow 42
Color Index No
77492
CAS No
51274-00-1
EC No
257-098-5
Chemical Group
Iron oxide
Chemical Formula α-Fe₂O₃

What is Pigment Yellow 42

Pigment Yellow 42 is an inorganic iron oxide yellow pigment widely used in coatings, construction materials, plastics, and other industrial coloration systems. It is identified in the Color Index as C.I. Pigment Yellow 42 and is typically supplied as a yellow powder with stable chemical composition and strong durability.

Product Technical Data and Typical Performance Values

PY42 – DuraPlast®3810        ⬇️TDS
Recommended for plastics (PO, PVC), coatings (coil-coat, powder coat), and other applications needing high heat/light/weather fastness.

PY42 – DuraPaint®6313        ⬇️TDS
Recommended for building materials, concrete, coatings, plastics & rubber, fiber cement, paper, tiles, and industrial exteriors.

Physical Properties

Test Item Specification
Contents Fe₂O₃(%) ≥75
Oil Absorption (g/100g) 35-45
Res.on 325 mesh(%) ≤0.3
Water soluble matter(%) ≤1.0
Moisture(%) ≤1.5
PH Value 6-8
Bulk density(g/cm3 ) 4.1

Fastness Properties

Heat Resistance (℃) 210 Alkali Resistance (1-5) 4
Light Resistance (Full Shade, 1-8) 8 Migration Resistance(1-5) 5
Light (Reduced tinting, 1-8) 8 Ethyl Acetate (1-5) 4
Weather Resistance (1-5) 5 Ethanol (1-5) 4
Acid Resistance (1-5) 4 MEK (1-5) 4

Typical Applications

Pigment Yellow 42 is widely used in several industrial coloration systems.

Architectural Coatings: Exterior paints, decorative coatings, and protective coatings.
Construction Materials: Concrete, cement products, paving blocks, and mortar coloration.
Plastics: Polyolefins, PVC, and general plastic products.
Rubber: Colored rubber goods and industrial rubber components.
Building Materials: Bricks, tiles, and roofing materials.

These applications benefit from the pigment’s durability and environmental stability.

Key Performance Properties Related to Applications

Color Shade:
Produces a natural yellow to yellow-brown tone depending on formulation and concentration.

Lightfastness:
Exhibits excellent lightfastness with minimal color fading under sunlight exposure.

Weather Resistance:
Highly resistant to outdoor environmental conditions such as UV radiation and moisture.

Heat Resistance:
Stable at high temperatures typically encountered in coating curing and plastic processing.

Chemical Stability:
Resistant to many acids, alkalis, and industrial chemicals.

Opacity:
Provides good hiding power and opacity in coatings and construction materials.

Advantages

1. Rich color performance

Pigment Yellow 42 provides a deep and stable yellow color, adding elegant colors to plastic and paving stone products. Its high color intensity and saturation make the color performance more vivid and true, enhancing the visual appeal of the final product.

2. Strong weather resistance

The pigment has excellent weather resistance and can withstand high temperatures, humidity and other harsh environmental conditions. Whether it is outdoor paving stones or plastics exposed to the elements, Yellow 42 can maintain stable color performance.

3. High wear resistance

Iron Oxide Yellow exhibits excellent wear resistance and can cope with high-intensity friction and wear. It is particularly suitable for paving stones and plastic products that need to be wear-resistant, ensuring long-lasting color in long-term use.

4. Good dispersibility

The pigment has excellent dispersibility and can be evenly integrated into plastic and concrete substrates to avoid color spots and unevenness. The excellent dispersibility of Pigment Yellow 42 ensures uniform and beautiful color of the final product.

5. Environmental protection and safety

Iron Oxide Yellow complies with international environmental standards and does not contain heavy metals and harmful substances, ensuring safe use. It is particularly suitable for applications with strict environmental requirements, such as public facilities and residential paving stones, providing users with safe and environmentally friendly solutions.

6. Excellent formula compatibility

The pigment has good compatibility with various resins and concrete formulas, ensuring stable and uniform color. The compatibility of Pigment Yellow 42 enables it to perform well in different applications.

Typical Limitations

Limited Brightness Compared to Organic Pigments:
Color tone may appear more earthy or muted compared with synthetic organic pigments.

Higher Density:
The inorganic nature of the pigment results in higher specific gravity compared with organic pigments.

Shade Variation:
Color shade may vary depending on particle size and processing conditions.

Buyer Guidance

When evaluating Pigment Yellow 42, buyers typically consider:

• Required shade tone (yellow vs. yellow-brown)
• Intended application such as coatings, plastics, or construction materials
• Exposure conditions including outdoor weathering
• Required opacity and coverage performance
• Compatibility with binder, polymer, or cement systems
• Regulatory and environmental compliance requirements

Manufacturer and Supplier Information

Pigment Yellow 42 is produced by manufacturers specializing in synthetic iron oxide pigments for coatings, construction materials, plastics, and rubber industries. Commercial grades may vary in particle size distribution, surface treatment, and color shade, depending on the intended industrial application.

Package and Delivery

●   25KG Kraft Bag, 400kg/500kg Carton Box

●   Lead Time: Normally around 15 days after signed contract.

FAQ

1.What color shade does Pigment Yellow 42 produce.

Pigment Yellow 42 typically produces a natural yellow to yellow-brown shade used in coatings, construction materials, and plastics.

2.Is Pigment Yellow 42 suitable for outdoor applications.

Yes. It is widely used in architectural coatings and construction materials due to its excellent lightfastness and weather resistance.

3.Can Pigment Yellow 42 be used in concrete and cement products.

Yes. The pigment is commonly used in concrete blocks, paving stones, and other cement-based materials.

4.What are the main characteristics of Pigment Yellow 42.

Typical characteristics include excellent durability, strong weather resistance, high chemical stability, and good opacity in industrial applications.

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