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High tinctorial strength with excellent color development in organic media.
Good thermal stability suitable for processing temperatures up to 160 °C.
Outstanding lightfastness (ISO 105-B02: Grade 6–7) in demanding applications.
Low volatility and minimal migration in plastic and ink systems.
Consistent batch-to-batch reproducibility supported by Clariant’s strict quality control.
Polyolefin masterbatches (PP, PE) for packaging and consumer goods.
Flexible PVC compounds including flooring, cables, and medical tubing.
Water-based and solvent-based gravure and flexographic inks.
Engineering plastics such as ABS and PS for automotive interior components.
Coatings for industrial wood and metal applications requiring balanced performance.
| Chemical Type | Azo pigment (monoazo, β-naphthol derivative) |
| Product Form | Free-flowing powder |
| Appearance | Reddish-orange powder |
| Primary Applications | Plastics, inks, coatings |
| Key Features | Good dispersibility, low dusting, high opacity |
| Benefits | Cost-effective red shade with robust processing behavior |
| Regulatory Compliance | REACH registered; compliant with EU Directive 2002/72/EC for food-contact plastics (subject to specific migration limits) |
| Storage Conditions | Store in a cool, dry place away from direct sunlight and moisture |
Q1: What is the primary chemical class and typical hue characteristics of Hansa Red GG?
A: Hansa Red GG is an organic monoazo pigment belonging to the Hansa yellow–red series. It delivers a clean, bright orange-red shade with good tinting strength and moderate transparency, making it suitable for applications requiring chromatic vibrancy without excessive masking.
Q2: Is Hansa Red GG suitable for use in food-contact plastics or inks?
A: Hansa Red GG is not approved for direct food-contact applications under major global regulatory frameworks. It is intended for general industrial use — such as decorative coatings, non-food packaging inks, and engineering plastics — where regulatory compliance for migration or toxicity is not required.
Q3: How does Hansa Red GG perform in terms of heat stability and lightfastness?
A: Hansa Red GG offers moderate thermal stability, typically supporting processing temperatures up to approximately 160–180 °C for short durations. Its lightfastness is rated at medium level (ISO 105-B02 scale: 4–5), making it appropriate for indoor applications but less suited for prolonged outdoor exposure without UV stabilization.
Q4: What types of polymer systems show good compatibility with Hansa Red GG?
A: Hansa Red GG demonstrates good dispersibility and compatibility in PVC, PS, ABS, and certain acrylic-based systems. Performance in polyolefins (e.g., PP, PE) may require optimized dispersion aids or surface treatment, and compatibility should be verified case by case through formulation testing.
Q5: What is the typical dosage range when using Hansa Red GG in solvent-based coatings?
A: Dosage depends on the desired opacity, substrate, and application method, but Hansa Red GG is generally used at low concentrations — typically ranging from 0.1% to 2% by weight of the total formulation — due to its strong tinting power and efficient color development.
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