Pigment Green 7

Product overview

Specifications

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Why PG 7 is the only green for demanding applications

Chlorination of the copper phthalocyanine core increases molecular weight, reduces solubility, and dramatically improves thermal and chemical stability. The degree of chlorination (typically 14–15 chlorine atoms per molecule in PG 7) shifts the hue from the cyan-blue of unsubstituted phthalocyanine to a brilliant yellow-green — while delivering heat stability up to 300 °C, outstanding resistance to acids, alkalis, and solvents, and ISO 8 lightfastness. No other organic green pigment comes close to this combination of performance properties.

Chemical class

Polychloro Copper Phthalocyanine

Colour Index name

Pigment Green 7

Colour Index number

CI 74260

CAS number

1328-53-6

Molecular formula

C₃₂Cl₁₆CuN₈ (approx.)

Chlorine content

~14–15 Cl atoms per molecule

Shade tone

Brilliant yellow-green

Specific gravity

~1.9–2.1 g/cm³

pH (10% slurry)

6.5 – 8.0

Available forms

Powder · Paste · Water-based Dispersion

Heat stability

Stable up to 300 °C

Lightfastness

ISO 8 (outstanding)

Technical performance

Performance Properties

Property	Standard / Note	Rating
Lightfastness	ISO 105-B02 — ISO 8	Excellent (5/5)
Heat stability	Up to 300 °C	Excellent (5/5)
Acid resistance	Concentrated acids	Excellent (5/5)
Alkali resistance	Concentrated alkalis	Excellent (5/5)
Weather fastness	Exterior exposure	Excellent (5/5)
Solvent resistance	Aromatics, ketones	Excellent (5/5)
Colour strength	Tinting method	Very good (4/5)
Migration resistance	PVC, polyolefins	Excellent (5/5)

End-use markets

Applications

Plastics & Masterbatch

The definitive green for high-temperature plastics. Heat stability to 300 °C makes PG 7 the only organic green suitable for engineering polymers (PA, PBT) and rotational moulding. Outstanding migration resistance in PVC and polyolefins.

Rubber & Elastomers

Excellent for tyre compounds, industrial seals, and outdoor rubber goods. Resistant to sulphur vulcanisation conditions and UV/ozone degradation, with no bleeding or migration into adjacent rubber compounds.

Industrial & Decorative Paints

Outstanding exterior durability for architectural and industrial coatings. ISO 8 lightfastness ensures fade resistance on exterior walls, industrial structures, and automotive finishes for 10+ years of service life.

Printing Inks

Strong, consistent green for flexographic, gravure, and offset inks used in packaging and commercial printing. Excellent solvent resistance prevents shade drift across different ink vehicles and printing processes.

Coatings

Suitable for powder coatings, high-solid coatings, and automotive finishing where bake temperatures reach 180–200 °C. Maintains colour stability through extended curing cycles without shade shift or gloss reduction.

Rubber & Leather Colouring

Widely used for colouring leather finishes and rubber goods where brilliant green shades are required. Excellent rub fastness and light stability ensure colour durability in finished leather articles and outdoor rubber applications.

Product forms

Available Forms

Dry Powder

Paste

Aqueous Dispersion

Custom Grade

Paste forms are ideal for high-quality printing inks and surface coatings. Aqueous dispersions are available for waterborne paint and paper coating systems. Custom surface treatments and particle size distributions available on request.

Compliance

Regulatory Status

REACH Registered

Registered under EU REACH regulation. Full SDS available on request for compliance and procurement documentation.

Heavy Metal Free

Contains no lead, cadmium, mercury, or chromium VI. Meets international packaging and automotive directives.

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