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High tinctorial strength with excellent color purity and clean scarlet shade.
Good thermal stability up to 180 °C, suitable for medium-temperature processing.
Outstanding lightfastness (ISO 105-B02: Grade 7–8) in polymer applications.
Good resistance to migration and blooming in PVC and polyolefin compounds.
Consistent batch-to-batch reproducibility ensured by BASF’s stringent quality control.
Polyvinyl chloride (PVC) profiles, flooring, and wire & cable sheathing.
Polyolefin masterbatches for injection-molded consumer goods and automotive interior parts.
General-purpose polystyrene and ABS plastics for housings and decorative components.
Flexible and rigid packaging films requiring high chroma and process stability.
Industrial coatings where moderate weathering resistance and gloss retention are required.
| Chemical Type | Lithol Fast Scarlet derivative (Calcium salt of 3-hydroxy-2-naphthoic acid azo pigment) |
| Product Form | Free-flowing powder |
| Appearance | Scarlet-red fine powder |
| Primary Applications | PVC, polyolefins, PS, ABS, and general-purpose coatings |
| Key Features | High tinctorial strength, good heat stability, low volatility |
| Benefits | Excellent dispersion behavior, minimal filter pressure build-up in extrusion |
| Recommended Loading Range | 0.5–3.0 wt% (depending on substrate and opacity requirements) |
| Regulatory Compliance | EU REACH registered; compliant with FDA 21 CFR §178.3290 for indirect food contact (subject to formulation) |
Q1: What are the primary application areas for Lithol Fast Scarlet L 4300?
A: Lithol Fast Scarlet L 4300 is widely used in industrial coatings, including coil and general metal coatings, as well as in selected plastic applications such as polyolefins and PVC where moderate thermal stability and good dispersibility are required.
Q2: How does Lithol Fast Scarlet L 4300 compare to other Lithol Scarlet grades in terms of heat stability?
A: L 4300 offers improved thermal stability compared to standard Lithol Scarlet grades, making it suitable for processing conditions encountered in extrusion and calendering of certain thermoplastics—though it is not recommended for high-temperature engineering polymers like polyesters or polycarbonates.
Q3: Is Lithol Fast Scarlet L 4300 suitable for food-contact plastics?
A: This pigment is not approved for direct food-contact applications under major global regulatory frameworks. It may be considered for indirect contact or non-migrating systems only after thorough risk assessment and compliance verification by the formulator.
Q4: What dispersion methods are recommended for optimal performance in coatings?
A: For best results in solvent-based and water-based industrial coatings, high-shear dispersion using media mills or high-speed dissolvers is recommended. Pre-dispersed paste forms are also available and often preferred for consistent color development and reduced processing time.
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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
