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High chroma and excellent color strength for vivid, consistent tinting performance.
Outstanding thermal stability suitable for high-temperature processing up to 280 °C.
Good dispersibility in both polar and non-polar polymer systems.
Low migration tendency, ensuring color fidelity in demanding end-use applications.
Compliant with major global food-contact and toy safety regulations (e.g., EU Plastics Regulation (EU) No 10/2011, ASTM F963).
Polyolefin masterbatches (PP, PE) for packaging films and containers.
Engineering plastics including ABS, PS, and PC for automotive interior components.
Food-grade plastic utensils and kitchenware requiring regulatory compliance.
Toy manufacturing where stringent heavy-metal and extractable limits apply.
Technical fibers and monofilaments requiring long-term color retention under UV exposure.
| Chemical Type | Organic Pigment (Benzimidazolone derivative) |
| Product Form | Free-flowing powder |
| Appearance | Reddish-orange powder |
| Primary Applications | Polyolefins, engineering thermoplastics, food-contact & toy-grade polymers |
| Key Features | Thermal stability, low migration, high tinctorial strength |
| Benefits | Consistent batch-to-batch color, ease of dispersion, regulatory readiness |
| Recommended Carrier | PP or PE wax-based carrier for masterbatch formulation |
| Storage Conditions | Store in cool, dry place; protect from moisture and direct sunlight |
Q1: What is the primary application field for BASF B-K 3630K Pigment?
A: BASF B-K 3630K Pigment is a high-performance organic pigment dispersion specifically developed for use in industrial coatings, including coil coatings, automotive refinishes, and general metal finishing systems where excellent color strength, gloss retention, and weather resistance are required.
Q2: Is B-K 3630K compatible with waterborne and solventborne coating systems?
A: Yes — B-K 3630K is formulated as a stable, ready-to-use pigment preparation designed for broad compatibility across both waterborne acrylic and polyurethane dispersions, as well as common solventborne resin systems such as alkyds, polyesters, and nitrocellulose-based formulations.
Q3: How should B-K 3630K be incorporated into a coating formulation?
A: It is recommended to add B-K 3630K during the let-down or grinding stage, followed by gentle mixing to ensure uniform distribution. Avoid excessive high-shear processing that may compromise dispersion stability. Pre-dilution with a compatible vehicle may be beneficial depending on formulation viscosity and rheology.
Q4: Does B-K 3630K offer good UV stability and heat resistance?
A: Yes — B-K 3630K exhibits enhanced lightfastness and thermal stability suitable for exterior applications and moderate-temperature curing processes (e.g., up to 200 °C for short durations), making it appropriate for demanding industrial coating environments.
Q5: What is the typical dosage range for achieving optimal color development?
A: Dosage depends on the desired shade intensity and substrate requirements, but B-K 3630K is typically used at low concentrations — generally ranging from 0.1% to 2% by weight relative to total formulation solids — due to its high tinting strength and efficient dispersion characteristics.
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