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High tinctorial strength with excellent color purity in the yellowish-red shade range.
Good lightfastness and weather resistance suitable for exterior architectural coatings.
Excellent dispersibility in both water-based and solvent-based coating systems.
Low volatility and non-hazardous formulation compliant with major global regulatory frameworks.
Consistent batch-to-batch reproducibility ensuring reliable color matching performance.
Architectural wall paints and façade coatings.
Industrial maintenance coatings for metal and concrete substrates.
Plastic coloration for extrusion and injection molding applications.
Printing inks for packaging and label applications.
Wood stains and clear finishes requiring transparent red hue enhancement.
| Chemical Type | Azo pigment (C.I. Pigment Red 112) |
| Product Form | Free-flowing powder |
| Appearance | Reddish-orange powder |
| Primary Applications | Coatings, inks, plastics |
| Key Features | Good heat stability up to 180°C |
| Benefits | Enhanced opacity and chroma in low-pigment-load systems |
| Regulatory Compliance | REACH registered; RoHS compliant; non-POPs |
| Storage Conditions | Store in cool, dry place away from direct sunlight |
Q1: What is the primary chemical class and typical application focus of Hansa Red GG?
A: Hansa Red GG is an organic monoazo pigment, widely used for its bright red shade and good lightfastness in solvent-based and water-based industrial coatings, including general-purpose architectural paints, wood finishes, and plastic coatings where high chroma and moderate weather resistance are required.
Q2: Is Hansa Red GG suitable for food-contact coatings or regulated packaging applications?
A: No — Hansa Red GG is not approved for direct food-contact applications. It is intended for general industrial and decorative coatings only. For food-contact compliant systems, Clariant offers alternative pigments specifically designed and certified for such regulatory environments.
Q3: How does Hansa Red GG perform in alkaline environments, such as cementitious or plaster-based coatings?
A: Hansa Red GG exhibits limited alkali resistance and may undergo shade shift or fading in strongly alkaline media. It is generally recommended for neutral or mildly acidic systems; for high-alkali applications like concrete primers or lime washes, alternative pigments with proven alkali stability should be selected.
Q4: What dispersion characteristics can formulators expect during milling or let-down?
A: Hansa Red GG demonstrates good dispersibility in common organic solvents and acrylic/alkyd resin systems using standard high-shear dispersion equipment. Optimal results are typically achieved with appropriate wetting agents and dispersants tailored to the binder polarity and medium pH.
Q5: What is the recommended dosage range for achieving full opacity and optimal color strength in architectural coatings?
A: Dosage depends on formulation requirements, but Hansa Red GG is typically used at low concentrations to achieve strong tinting strength — generally ranging from 0.1% to 2% by weight in the final coating, depending on desired shade intensity, substrate, and film thickness.
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E-mail: wangxingqiang@ericwchem.com
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