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High chroma and excellent color strength for vibrant red shades.
Outstanding thermal stability suitable for high-temperature processing up to 280°C.
Good dispersibility in both polar and non-polar polymer matrices.
Excellent lightfastness (ISO 105-B02, Grade 7–8) and weather resistance.
Low volatility and minimal extractables, meeting stringent regulatory requirements for food-contact plastics.
Polyolefin masterbatches (PP, PE) for consumer packaging and automotive interior parts.
Engineering plastics including ABS, PS, and PC for electronic housings and appliances.
Food-grade rigid containers and caps requiring FDA-compliant colorants.
Industrial coatings requiring high-gloss, fade-resistant red pigmentation.
Textile fibers (polyester, nylon) in high-speed melt-spinning processes.
| Chemical Type | Azo pigment, calcium salt of naphthol AS derivative |
| Product Form | Fine free-flowing powder |
| Appearance | Reddish-orange powder with uniform particle size distribution |
| Primary Applications | Polyolefins, engineering thermoplastics, coatings, synthetic fibers |
| Key Features | Thermal stability, dispersibility, lightfastness, low extractables |
| Benefits | Consistent batch-to-batch color, reduced filter clogging, extended product service life |
| Regulatory Compliance | EU REACH compliant; meets FDA 21 CFR §178.3290 for polyolefins |
| Particle Size (D50) | 0.8–1.2 µm (by laser diffraction) |
Q1: What is the primary chemical class and typical hue profile of F5RK P.R.170 Pigment?
A: F5RK P.R.170 is a high-performance perylene-based red pigment, offering strong bluish-red shade with excellent chroma, lightfastness, and thermal stability. Its molecular structure provides inherent resistance to fading under UV exposure and elevated processing temperatures.
Q2: In which polymer systems is F5RK P.R.170 most commonly processed, and what are key dispersion considerations?
A: It is widely used in engineering thermoplastics such as polyesters, polyamides, and polyolefins, especially where high-temperature melt processing is required. Optimal performance depends on thorough dispersion—typically achieved via twin-screw extrusion or pre-dispersed masterbatch incorporation—to ensure uniform color development and avoid agglomeration-related defects.
Q3: Is F5RK P.R.170 suitable for applications requiring regulatory compliance for food contact or toys?
A: F5RK P.R.170 is not certified for direct food-contact or toy applications under major global frameworks (e.g., FDA 21 CFR, EU Plastics Regulation, or EN71-3). It is intended for industrial, automotive, and durable goods applications where regulatory requirements focus on migration resistance under non-food conditions.
Q4: How does F5RK P.R.170 perform under weathering and outdoor exposure?
A: Due to its perylene backbone, F5RK P.R.170 exhibits outstanding resistance to photodegradation, making it well-suited for long-term outdoor use in coated plastics and exterior automotive components. Performance is further enhanced when combined with appropriate UV stabilizers and hindered amine light stabilizers (HALS) in the final formulation.
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E-mail: wangxingqiang@ericwchem.com
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