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High chroma and excellent color strength for vibrant, consistent hue reproduction.
Outstanding thermal stability suitable for high-temperature processing up to 280°C.
Good dispersibility in both polar and non-polar polymer systems without requiring complex surfactants.
Excellent lightfastness (Grade 7–8 per ISO 105-B02) and weather resistance in outdoor applications.
Low volatility and negligible migration in PVC, polyolefins, and engineering thermoplastics.
Coloration of polypropylene (PP) and polyethylene (PE) fibers and injection-molded parts.
Automotive interior plastics including dashboards, trim, and console components.
PVC window profiles, siding, and flexible flooring requiring long-term UV durability.
Masterbatch formulations for food-contact-compliant packaging films (EU 10/2011 compliant).
Engineering plastics such as ABS and polycarbonate blends used in consumer electronics housings.
| Chemical Type | Quinacridone derivative |
| Product Form | Free-flowing powder |
| Appearance | Red-violet fine powder |
| Primary Applications | Polyolefins, PVC, ABS, polycarbonate |
| Key Features | Thermal stability, low migration, high tinctorial strength |
| Benefits | Consistent batch-to-batch color, reduced dosage requirement, enhanced processability |
| Regulatory Compliance | REACH registered; RoHS compliant; non-heavy-metal |
| Particle Size (D50) | 0.12–0.18 µm |
Q1: What is the primary chemical class and typical hue profile of DIC 260-5645?
A: DIC 260-5645 is a high-performance quinacridone-based organic pigment, known for its strong violet-red to magenta shade with excellent chroma and clean undertones. It exhibits inherent resistance to heat, light, and migration due to its fused polycyclic molecular structure.
Q2: In which polymer systems is DIC 260-5645 most commonly processed, and what are key processing considerations?
A: This pigment is widely used in engineering thermoplastics such as polyolefins (PP, PE), ABS, PS, and certain polyesters. It demonstrates good dispersibility under standard melt-compounding conditions; however, optimal color development and stability require adequate shear history and controlled residence time—especially above 200 °C—to avoid thermal degradation or unintended hue shifts.
Q3: How does DIC 260-5645 perform in outdoor applications requiring long-term UV stability?
A: As a quinacridone derivative, DIC 260-5645 offers inherently high photostability and weather resistance—significantly superior to many azo pigments. When properly formulated and compounded—particularly with appropriate UV stabilizers and HALS—the pigment retains vividness and shows minimal fading or chalking after extended outdoor exposure in suitable resin matrices.
Q4: Is DIC 260-5645 suitable for food-contact plastics, and what regulatory guidance applies?
A: DIC 260-5645 is not pre-approved for direct food-contact applications under major global regulatory frameworks (e.g., FDA 21 CFR, EU Plastics Regulation). Its use in food packaging must be evaluated case-by-case based on final formulation, intended conditions of use, and migration potential—and requires full compliance verification by the end-user or compounder.
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