Organic Pigments

Pigment Yellow 139

Also Known As:C.I. 5629856298Isoindoline

Pigment Yellow 139 affords reddish yellow shade, exist variety particle size distribution types exhibit very good fastness to light and weather.

Pigment Yellow 139 - 1

Key Features

Good weatherability with balanced cost
Excellent dispersibility in inks and coatings
High brightness and good opacity/coverage (grade dependent)
Heat resistance up to 240°C (system dependent)
Light fastness: 8 (scale 1–8)
Excellent overall durability (weather/chemical resistance)

Technical Specifications

C.I. NO.56298
CAS NO.36888-99-0
EU NO253-256-2
Molecular FormulaC16H9N5O6
Chemical GroupIsoindoline
Moisture≤1.5
Water Soluble Matter≤1.5
Electric Conductivity≤500
Fineness (80 mesh)≤500
pH Value5.0-6.0

Physical Data & Fastness Properties

Acid Resistance5
Alkali Resistance4
Alcohol Resistance5
Ester Resistance5
Benzene Resistance5
Soap Resistance5
Heat Resistance240
Light Fastness8

Application Fields

This product is widely used in the following application fields, providing excellent coloring performance and durability:

  • Automotive OEM/refinish coatings
  • Powder coatings
  • Printing inks (gravure/flexo)
  • Packaging inks
  • Paints and coatings
  • Plastics coloring

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Usage Instructions

Recommended dosage: 0.3–3.0% depending on color strength and application. For plastics/masterbatch, pre-disperse with suitable carrier resin and dispersant; for inks/coatings, mill to target fineness. Processing temperature should be controlled below 240°C (system dependent). Ensure good ventilation and use appropriate PPE. Store sealed in a cool, dry place.

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