Organic Pigments

Pigment Yellow 139

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

Applications

  • 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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