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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 systems.
Low migration behavior, meeting stringent regulatory requirements for food-contact plastics.
Consistent batch-to-batch color performance and rheological compatibility.
Polyolefin packaging films (e.g., PP, PE) requiring FDA-compliant coloration.
Automotive interior components including dashboards and trim parts.
Household appliances housings exposed to indoor UV and thermal cycling.
Technical injection-molded parts for electronics enclosures and medical device housings.
| Chemical Type | Azo pigment (Benzimidazolone derivative) |
| Product Form | Free-flowing powder |
| Appearance | Yellow to orange-yellow powder |
| Primary Applications | Polyolefins, ABS, PS, PVC, engineering plastics |
| Key Features | Heat stability, lightfastness (ISO 105-B02: 7–8), weather resistance (ISO 11341: ≥5 years QUV) |
| Benefits | Color consistency, low dust generation, excellent dispersion without pre-treatment |
| Regulatory Compliance | EU REACH registered; compliant with FDA 21 CFR §178.3297 & §178.3750 |
Q1: What is the primary chemical class of Graphtol Yellow GR?
A: Graphtol Yellow GR is an organic pigment based on the monoazo pyridone chemical structure, offering balanced hue, good lightfastness, and thermal stability suitable for demanding industrial applications.
Q2: Is Graphtol Yellow GR suitable for food-contact plastics?
A: Graphtol Yellow GR is not intended for direct food-contact applications unless specifically authorized under applicable regional regulations and supported by appropriate compliance documentation from Clariant. Always consult Clariant’s regulatory team for application-specific suitability assessments.
Q3: How does Graphtol Yellow GR perform in high-temperature polymer processing?
A: This pigment demonstrates good thermal stability and is commonly used in polyolefins, PS, and ABS processed at temperatures up to approximately 260 °C, with minimal risk of decomposition or hue shift under standard compounding conditions.
Q4: What dispersion characteristics can be expected in standard masterbatch systems?
A: Graphtol Yellow GR exhibits excellent dispersibility in common carrier resins and typically achieves fine, uniform distribution with standard twin-screw extrusion processes—supporting high color strength and low filter pressure build-up.
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