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High chroma yellow with excellent lightfastness and weather resistance.
Outstanding thermal stability suitable for high-temperature processing up to 280 °C.
Good dispersibility in both solvent-based and water-based systems.
Low migration and bleed resistance in PVC, polyolefins, and engineering plastics.
Compliant with major global regulatory frameworks including REACH and RoHS.
Automotive interior and exterior plastics (dashboards, trim, bumpers).
Packaging films and containers requiring food-contact compliance (EU 10/2011).
Industrial coatings for metal and plastic substrates.
Masterbatch formulations for polypropylene, polyethylene, and ABS.
Architectural and decorative PVC profiles and window frames.
| Chemical Type | Organic pigment – Benzimidazolone derivative |
| Product Form | Free-flowing powder |
| Appearance | Yellow to greenish-yellow powder |
| Primary Applications | Plastics, coatings, inks |
| Key Features | High heat stability, low volatility, excellent dispersion |
| Benefits | Color consistency, long-term durability, regulatory compliance |
| Particle Size (D50) | 0.12–0.18 µm (by laser diffraction) |
| Volatile Matter (105 °C, 2 h) | ≤ 0.5 wt% |
Q1: What is the primary chemical class of Clariant Permanent Yellow GRX 86?
A: Clariant Permanent Yellow GRX 86 is an organic pigment based on a monoazo structure, specifically engineered for high chroma, excellent lightfastness, and thermal stability in demanding polymer processing environments.
Q2: Is this pigment suitable for food-contact plastics?
A: Clariant Permanent Yellow GRX 86 is not pre-approved for direct food-contact applications under global regulatory frameworks. Its use in food-contact materials requires full formulation-level compliance assessment by the end-user, including migration testing and regulatory review per applicable regional requirements.
Q3: How does GRX 86 perform during high-temperature processing, such as injection molding of engineering thermoplastics?
A: This pigment demonstrates good thermal stability up to approximately 280 °C for short residence times, making it suitable for processing polyolefins, ABS, PS, and certain engineering polymers—though extended exposure above 260 °C may affect hue consistency and should be validated per process conditions.
Q4: What is the typical dosage range when using GRX 86 in polyolefin masterbatches?
A: Dosage depends on the desired shade strength and final application requirements, but it is typically used at low concentrations—generally ranging from 0.1% to 2% by weight in polyolefin masterbatches—to achieve strong yellow tones while maintaining dispersion stability and minimal impact on mechanical properties.
Q5: Does GRX 86 require special dispersing additives or compatibilizers in standard polymer systems?
A: While GRX 86 is designed for good compatibility with common polyolefins and styrenics, optimal dispersion performance—especially in high-clarity or high-gloss applications—may benefit from conventional pigment dispersants or carrier-resin matching. Pre-dispersed masterbatches are recommended for consistent results in sensitive formulations.
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