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High chroma and clean blue-shade red hue for vibrant, consistent coloration.
Excellent thermal stability suitable for high-temperature processing up to 280 °C.
Good lightfastness and weather resistance in demanding outdoor applications.
Low migration behavior, making it ideal for food-contact-compliant plastic packaging.
Optimized dispersibility in polyolefins, PVC, and engineering thermoplastics.
Polypropylene (PP) and polyethylene (PE) packaging films and containers.
Rigid PVC profiles and siding for architectural applications.
Automotive interior trim components requiring long-term color stability.
Household appliances and consumer electronics housings.
Masterbatch formulations for injection molding and extrusion processes.
| Chemical Type | Azo pigment (Benzimidazolone derivative) |
| Product Form | Free-flowing granular pigment concentrate |
| Appearance | Red granules with bluish undertone |
| Primary Applications | Polyolefins, PVC, ABS, PS, and engineering plastics |
| Key Features | Thermally stable, low-migration, high-tinting strength |
| Benefits | Consistent batch-to-batch color, reduced formulation complexity, compliance-ready |
| Regulatory Status | EU REACH registered; compliant with FDA 21 CFR §178.3297 (for polymer additives) |
| Recommended Loading Range | 0.2–2.0 wt% depending on substrate and opacity requirements |
Q1: What is the primary chemical class of Graphtol Red BB?
A: Graphtol Red BB is a high-performance azo pigment, specifically classified as a benzimidazolone derivative, offering excellent thermal stability and lightfastness for demanding industrial applications.
Q2: Is Graphtol Red BB suitable for use in food-contact plastics?
A: Graphtol Red BB is not approved for direct food-contact applications under major global regulatory frameworks. It is intended for non-food-contact industrial plastics, coatings, and inks where high chroma and durability are required.
Q3: How does Graphtol Red BB perform in polyolefin processing?
A: This pigment demonstrates good dispersibility and thermal stability in polyolefins such as PP and PE, maintaining color strength and hue consistency during melt processing at typical extrusion temperatures.
Q4: What types of solvents or resin systems is Graphtol Red BB compatible with?
A: Graphtol Red BB shows broad compatibility with common thermoplastic resins and solvent-based systems, including acrylics, alkyds, and nitrocellulose. Compatibility in water-based systems may require optimized dispersion aids and should be verified case by case.
Q5: What is the recommended dosage range for optimal performance?
A: Dosage depends on the specific application and desired opacity or chroma, but it is typically used at low concentrations—generally ranging from 0.1% to 2% by weight in polymer masterbatches or coating formulations.
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