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High chroma yellow shade with excellent lightfastness and weather resistance.
Outstanding thermal stability suitable for high-temperature polymer processing.
Good dispersibility in both polar and non-polar media, including polyolefins and PVC.
Low migration tendency, ensuring color integrity in demanding end-use applications.
Compliant with major global regulatory frameworks for plastics and coatings.
Polyolefin packaging films requiring vibrant, stable yellow hues.
Automotive interior plastics exposed to UV and elevated temperatures.
Household appliance casings where long-term color retention is critical.
Engineering thermoplastics such as ABS and polycarbonate blends.
Industrial coatings for outdoor equipment requiring durable yellow pigmentation.
| Chemical Type | Disazo pigment (Pigment Yellow 13) |
| Product Form | Free-flowing powder |
| Appearance | Yellow to greenish-yellow powder |
| Primary Applications | Plastics, coatings, inks |
| Key Features | High tinctorial strength, good heat stability up to 280°C |
| Benefits | Consistent batch-to-batch color performance and low dust generation |
| Regulatory Compliance | EU REACH registered; compliant with FDA 21 CFR §178.3297 for indirect food contact plastics |
Q1: What is the primary chemical class and typical hue of Hostaperm H4G?
A: Hostaperm H4G is a high-performance perylene-based organic pigment, offering a clean, bluish-red shade with excellent chroma and strong tinting strength. Its molecular structure contributes to outstanding thermal stability and lightfastness.
Q2: In which polymer systems is Hostaperm H4G most commonly processed?
A: This pigment is widely used in engineering thermoplastics such as polyamide (PA6, PA66), polybutylene terephthalate (PBT), and polycarbonate (PC), particularly where high-temperature processing and long-term color stability are required. It demonstrates good dispersibility in melt-compounding processes.
Q3: Does Hostaperm H4G meet regulatory requirements for food-contact applications?
A: Hostaperm H4G is not certified for direct food-contact use under major global regulatory frameworks. It is intended for non-food-contact industrial and automotive applications. For regulated end uses, always consult Clariant’s latest compliance documentation and perform application-specific testing.
Q4: How does Hostaperm H4G perform under outdoor weathering conditions?
A: Thanks to its perylene backbone, Hostaperm H4G exhibits very high resistance to UV radiation and atmospheric degradation. When properly formulated and dispersed, it delivers superior lightfastness and weatherfastness in exterior-grade plastic applications—especially in unpigmented or lightly pigmented matrices.
Q5: What is the recommended dosage range for optimal performance?
A: Dosage depends on the substrate, desired opacity, and processing conditions, but Hostaperm H4G is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—to achieve full shade development and maintain mechanical properties in the final polymer part.
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