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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 polar and non-polar polymer 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 plastic components.
Household appliances with demanding color consistency requirements.
Packaging films requiring FDA-compliant colorants (when formulated per guidance).
Industrial coatings for durable goods and machinery.
Engineering thermoplastics such as ABS, PS, and PC blends.
| Chemical Type | Azo pigment (disazo condensation type) |
| Product Form | Free-flowing powder |
| Appearance | Bright greenish-yellow powder |
| Primary Applications | Plastics, industrial coatings, masterbatches |
| Key Features | High tinctorial strength, low dusting, excellent heat stability |
| Benefits | Consistent batch-to-batch color, reduced formulation complexity, extended service life under UV exposure |
| Recommended Processing Temperature Range | Up to 280 °C (short-term) |
| Regulatory Status | REACH registered; RoHS compliant; non-heavy-metal |
Q1: What is the primary chemical class of Permanent Yellow GRX 83?
A: Permanent Yellow GRX 83 is a high-performance monoazo pigment, specifically engineered for excellent heat stability and lightfastness in demanding polymer applications.
Q2: Is this pigment suitable for food-contact plastics?
A: Permanent Yellow GRX 83 is not certified for direct food-contact applications under major global regulatory frameworks. It is intended for non-food-contact industrial and decorative plastic uses where high thermal stability and color strength are required.
Q3: How does GRX 83 perform during high-temperature processing, such as injection molding or extrusion?
A: This pigment demonstrates robust thermal stability, maintaining color integrity and minimal degradation at typical polyolefin and engineering plastic processing temperatures up to 280 °C, making it well-suited for demanding melt-processing operations.
Q4: What is the typical dosage range when using GRX 83 in polypropylene (PP) or ABS?
A: Dosage depends on formulation requirements and desired shade intensity, but it is typically used at low concentrations—generally ranging from 0.1% to 2% by weight—in PP, ABS, and other thermoplastics to achieve strong, clean yellow hues with good dispersion.
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E-mail: wangxingqiang@ericwchem.com
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