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High chroma and clean fire-red hue with excellent color strength.
Outstanding thermal stability suitable for high-temperature processing up to 280 °C.
Good lightfastness and weather resistance in demanding outdoor applications.
Low migration and bleed resistance in PVC, polyolefins, and styrenic polymers.
Optimized dispersibility for efficient incorporation in masterbatches and compounded systems.
Automotive interior and exterior plastic components.
Household appliances requiring durable, heat-stable red coloring.
PVC profiles and window frames for architectural applications.
Technical injection-molded parts in industrial equipment.
Food-contact-compliant packaging films (subject to local regulatory approval).
| Chemical Type | Organic Pigment (Azo-based) |
| Product Form | Fine free-flowing powder |
| Appearance | Red to reddish-brown powder |
| Primary Applications | PVC, polyolefins, PS, ABS, thermoplastic elastomers |
| Key Features | Thermal stability, low migration, high tinctorial strength |
| Benefits | Consistent color reproduction, minimal plate-out, compatibility with standard dispersing equipment |
| Regulatory Compliance | REACH registered; compliant with EU Directive 2002/72/EC for plastics in food contact (when used within specified limits) |
| Recommended Loading Range | 0.1–2.0 wt% depending on substrate and application |
Q1: What is the primary chemical class of Graphtol Fire Red 3RLP?
A: Graphtol Fire Red 3RLP is an organic pigment based on the azo chromophore system, specifically classified as a monoazo pigment with high molecular weight and improved thermal and migration resistance compared to low-molecular-weight analogues.
Q2: Is this pigment suitable for food-contact plastics applications?
A: Graphtol Fire Red 3RLP is designed for use in non-food-contact plastic applications. It is not approved for direct food-contact applications under major global regulatory frameworks, and users must conduct full compliance verification—including extractable testing and regulatory review—before considering any potential food-contact use.
Q3: How does its heat stability compare to standard azo pigments in polyolefin processing?
A: Graphtol Fire Red 3RLP exhibits enhanced thermal stability relative to conventional low-molecular-weight red azo pigments, enabling reliable performance during typical polyolefin compounding and injection molding processes without significant hue shift or decomposition.
Q4: What is the recommended dosage range in masterbatch formulations?
A: Dosage depends on the desired shade intensity and base polymer, but Graphtol Fire Red 3RLP is typically used at low concentrations in masterbatches—generally ranging from 0.1% to 2% by weight—to achieve strong tinctorial strength and good dispersion.
Q5: Which polymers show optimal compatibility and dispersion behavior with this pigment?
A: This pigment demonstrates excellent compatibility and dispersion in polyolefins (e.g., PP, HDPE), polystyrene, and ABS. Performance in polar resins such as PET or PC may require evaluation of specific dispersant systems and processing conditions.
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