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High tinctorial strength with excellent color purity and clean red shade.
Good thermal stability suitable for processing up to 160 °C in standard polymer systems.
Excellent lightfastness (ASTM Level 6–7) in demanding outdoor applications.
Good migration resistance in PVC, PS, and ABS plastic compounds.
Free-flowing powder form with consistent particle size distribution for uniform dispersion.
Coloration of rigid and flexible PVC profiles, films, and cables.
Pigmentation of polystyrene (PS) and acrylonitrile-butadiene-styrene (ABS) consumer goods.
Industrial coatings for appliances and automotive interior trim.
Masterbatch production for injection-molded and extruded plastic parts.
Printing inks for packaging and label applications requiring high chroma reds.
| Chemical Type | Azo pigment (monoazo, β-naphthol derivative) |
| Product Form | Free-flowing dry powder |
| Appearance | Scarlet red powder |
| Primary Applications | PVC, PS, ABS, industrial coatings, printing inks |
| Key Features | High tinctorial strength, good heat stability, excellent lightfastness |
| Benefits | Consistent batch-to-batch performance, easy dispersion, low dust generation |
| Regulatory Compliance | REACH registered; compliant with EU Directive 2002/61/EC for azo dyes |
| Recommended Processing Temperature | Up to 160 °C (short-term) |
Q1: What is the primary chemical class and typical hue profile of Hansa Scarlet RNC?
A: Hansa Scarlet RNC is an organic monoazo pigment belonging to the Hansa Yellow/Scarlet family. It delivers a clean, bright red-orange shade with strong chroma and good lightfastness in many polymer and coating systems.
Q2: Is Hansa Scarlet RNC suitable for use in food-contact plastics?
A: This pigment is not certified for direct food-contact applications under major global regulatory frameworks. It may be considered for indirect or non-migrating applications where regulatory assessment confirms compliance — users must conduct full formulation-specific evaluations and consult local regulatory authorities before use.
Q3: How does Hansa Scarlet RNC perform in high-temperature processing such as injection molding?
A: Hansa Scarlet RNC exhibits good thermal stability up to approximately 220–240 °C, making it suitable for many standard thermoplastic processing conditions. Performance may vary depending on residence time, shear history, and resin matrix — stabilization and processing optimization are recommended for demanding applications.
Q4: What dispersion methods are recommended to achieve optimal color strength and consistency?
A: Optimal dispersion is typically achieved using high-shear equipment such as twin-screw extruders or high-speed dispersers. Pre-dispersed concentrates (pellets or pastes) are widely used in plastics, while wet-grinding or bead milling may be preferred for liquid coatings and inks.
Q5: What is the typical dosage range when using Hansa Scarlet RNC in polyolefin masterbatches?
A: Dosage depends on the desired shade intensity and final application requirements, but typical use levels in polyolefin masterbatches generally range from 0.1% to 2% by weight — with lower concentrations often sufficient due to its high tinctorial strength.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
