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High chroma and clean yellow shade with excellent color strength.
Outstanding thermal stability suitable for high-temperature processing up to 280 °C.
Excellent lightfastness and weather resistance in demanding outdoor applications.
Good migration resistance in PVC, polyolefins, and engineering plastics.
Optimized dispersibility for efficient incorporation and consistent color development.
Coloration of polyolefin fibers and spunbond nonwovens.
PVC profiles, cables, and rigid extrusions requiring heat stability.
Engineering plastics including polyamide (PA) and polybutylene terephthalate (PBT).
Masterbatches for automotive interior components.
General-purpose color concentrates for injection-molded consumer goods.
| Chemical Type | Disazo condensation pigment (C.I. Pigment Yellow 151) |
| Product Form | Free-flowing powder |
| Appearance | Yellow to greenish-yellow powder |
| Primary Applications | Polyolefins, PVC, engineering plastics, masterbatches |
| Key Features | High thermal stability, excellent dispersion, good lightfastness |
| Benefits | Consistent coloration, low dust generation, process reliability |
| Recommended Processing Temperature Range | Up to 280 °C (short-term) |
| Regulatory Compliance | REACH compliant; meets applicable FDA and EU food-contact guidelines for indirect contact |
Q1: What are the key performance advantages of PV FAST H4G PY151 compared to standard PY151 pigments?
A: PV FAST H4G PY151 offers enhanced heat stability and improved dispersibility in demanding polymer systems, particularly polyolefins and engineering thermoplastics. Its optimized particle size distribution supports superior color strength, gloss, and batch-to-batch consistency in high-temperature processing applications.
Q2: Is PV FAST H4G PY151 suitable for food-contact plastics?
A: This pigment is designed for use in non-food-contact applications. For food-contact compliance, customers must consult Clariant’s regulatory documentation and verify suitability against applicable regional requirements—no general food-contact approval is implied for this grade.
Q3: How should PV FAST H4G PY151 be dispersed in polypropylene (PP) compounds?
A: Optimal dispersion is achieved using high-shear compounding equipment, such as twin-screw extruders, with appropriate screw configuration and temperature profiling. Pre-mixing with carrier resin or masterbatch dilution is recommended to ensure uniform distribution and minimize agglomeration.
Q4: Does PV FAST H4G PY151 exhibit good lightfastness and weather resistance in outdoor applications?
A: Yes—this grade delivers very good lightfastness and UV resistance in stabilized polyolefin systems. Performance in long-term outdoor exposure depends on the full formulation, including UV stabilizers and antioxidants, but PV FAST H4G PY151 is formulated to maintain color integrity under typical outdoor service conditions.
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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
