Pigment Yellow 81

Brand	Fineland Chem
Color Index	Pigment Yellow 81 (PY81)
Color Index No	21127
CAS No	22094-93-5
EC No	224-776-0
Chemical Group	Mono Azo
Chemical Formula	C₃₆H₃₂Cl₄N₆O₄

Introduction

Pigment Yellow 81 (PY81)offers good lightfastness (6-7 grade), excellent heat and solvent resistance. It is ideal for solvent-based metal decoration inks, alkyd-melamine coatings, and polyolefins. It provides high durability in coatings and is suitable for PVC coloring, particularly in rigid PVC where it demonstrates a 7-grade lightfastness.

Best Sellings

PY81 – DuraPlast®3181-1 ⬇️TDS

A high-performance yellow pigment known for its excellent lightfastness (6-7 grade), heat resistance (up to 260°C), and strong solvent resistance. It offers vibrant color with high opacity and durability, making it ideal for coatings, inks, PVC, and polyolefins. As a safe, environmentally friendly alternative to Chrome Yellow, DuraPlast® 3181-1 provides reliable performance across multiple industries without compromising color intensity.

Physical Properties

Test Item	Specification
Density (g/cm3 )	1.40-1.55
Specific Surface Area(m2/g)	20-30
Oil Absorption(g/100g)	35-45
PH Value	6.5-7.5
Bulk Density (lb/gal)	11.0-12.5
Total impurities(ppm)	≤600

Fastness Properties (5=excellent, 1=poor) | Light Fastness (8=excellent, 1=poor)

Heat Resistance (℃)	240	Alkali Resistance (1-5)	5
Light Resistance (Full Shade, 1-8)	7	Migration Resistance(1-5)	5
Light (Reduced tinting, 1-8)	6	Ethyl Acetate (1-5)	4
Weather Resistance (1-5)	5	Ethanol (1-5)	5
Acid Resistance (1-5)	5	MEK (1-5)	4

Application

Pigment yellow 81 application:
Recommended for different plastic like color masterbatch, soft and hard PVC, textile printing paste, printing ink like metal decorative printing ink, packaging ink. Also suitable for coatings.

Application

Printing Ink: Discover high-performance ink pigments for various printing technologies including water-based, solvent-based, offset, inkjet, UV curing, and decorative applications. More Details

Paint and Coating: Explore a wide range of coating pigments tailored for paints, oils, automotive finishes, industrial applications, concrete, cement, and ceramics. More Details

Plastic: Browse a comprehensive selection of plastic pigments designed for PE, PVC, EVA, rubber, and a variety of engineering plastics. More Details

Special Applications: Find specialized pigments offering unique effects and functionalities for textiles, resins, glazes, metallic finishes, fluorescence, and anti-corrosion needs. More Details

Package and Delivery

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

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

Advantages

Excellent Lightfastness: With a rating of 6-7, Pigment Yellow 81 offers outstanding color stability, ensuring long-lasting brightness in both coatings and inks.
Superior Heat Resistance: Can withstand temperatures up to 260°C for 5 minutes, making it suitable for high-temperature applications like PVC and polyolefins.
Strong Solvent Resistance: Demonstrates excellent durability and stability in solvent-based systems, ideal for metal decoration inks and industrial coatings.
High Opacity and Coverage: Provides strong hiding power, allowing vibrant and consistent coloring, even at low pigment concentrations.

Synonyms

C.I. Pigment Yellow 81
C.I. 21127
Benzidine Yellow 10G
Plasco Yellow 81
Lithol Fast Yellow 0991K
Permanent Yellow H 10G
PV Yellow H108
6128 Benzidine Yellow 10G
Basoflex Yellow 099
Novoperm Yellow H10G 01
Permanent Yellow H10G
PV Yellow H10G 01
Sanyo Pigment Yellow 8104
Suimei Yellow F10G
Symuler Fast Yellow 4074
Symuler Fast Yellow F10G
Yellow PEC-303
Yellow Vm-303
2,2′-[(2,2′,5,5′-Tetrachloro[1,1′-biphenyl]-4,4′-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide]
Butanamide, 2,2-(2,2,5,5-tetrachloro1,1-biphenyl-4,4′-diyl)bis(azo)bisN-(2,4-dimethylphenyl)-3-oxo-
2,2′-[(2,2′,5,5′-Tetrachloro[1,1′-biphenyl]-4,4′-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxo-butanamide]
2,2′-[(2,2′,5,5′-Tetrachloro[1,1′-biphenyl]-4,4′-diyl)bis(2,1-diazenediyl)]bis[N-(2,4-dimethylphenyl)-3-oxobutamide]