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High chroma yellow shade with excellent lightfastness and weather resistance.
Outstanding thermal stability suitable for high-temperature processing up to 280 °C.
Good dispersibility in both polar and non-polar polymer matrices.
Low migration tendency, ensuring color consistency in demanding applications.
Compliant with major global regulatory frameworks including REACH and RoHS.
Polyolefin masterbatches (PP, PE) for automotive interior components.
Engineering plastics including ABS, PS, and PC for consumer electronics housings.
Flexible and rigid PVC compounds for building & construction profiles.
Thermoplastic elastomers (TPE) used in medical device casings and seals.
Industrial coatings requiring durable, non-fading yellow coloration.
| Chemical Type | Benzimidazolone pigment |
| Product Form | Free-flowing powder |
| Appearance | Yellow to orange-yellow powder |
| Primary Applications | Polyolefins, engineering plastics, PVC, TPE |
| Key Features | High thermal stability, low migration, excellent dispersibility |
| Benefits | Color consistency, process robustness, regulatory compliance |
| Recommended Processing Temperature Range | Up to 280 °C |
| Regulatory Status | REACH registered; RoHS compliant; non-heavy metal |
Q1: What is the primary chemical class of Hostaperm Yellow H4G 70?
A: Hostaperm Yellow H4G 70 is a high-performance quinophthalone pigment, known for its excellent lightfastness, thermal stability, and clean yellow hue in demanding applications.
Q2: Is this pigment suitable for use in food-contact plastics?
A: Hostaperm Yellow H4G 70 is not pre-approved for direct food-contact applications under major global regulatory frameworks. Its suitability depends on final formulation testing and compliance verification by the compounder or end-user against applicable regional requirements.
Q3: How does this pigment perform in polyolefin processing at elevated temperatures?
A: It exhibits very good thermal stability in polyolefins, maintaining color strength and minimal color shift during standard injection molding and extrusion processes, even at temperatures up to 280 °C.
Q4: What are typical dosage levels when using this pigment in masterbatches?
A: Dosage depends on the required shade intensity and base polymer, but it is typically used at low concentrations—generally ranging from 0.1% to 2% by weight in masterbatch formulations.
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