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High tinctorial strength with excellent color development in demanding pigment systems.
Good thermal stability up to 180 °C, suitable for medium-temperature processing applications.
Outstanding lightfastness (Blue Scale 6–7) and weather resistance in protected environments.
Excellent dispersibility in polar and non-polar media, enabling efficient incorporation into various resin systems.
Low volatility and minimal extractables, supporting compliance with stringent regulatory requirements for industrial coatings.
Automotive OEM and refinish coatings requiring consistent red shade and durability.
Industrial maintenance coatings for metal and plastic substrates.
Plastic coloration of polyolefins, ABS, and PVC under standard processing conditions.
High-performance printing inks for packaging and decorative films.
Architectural coatings where balanced chroma, opacity, and long-term color retention are critical.
| Chemical Type | Calcium salt of monoazo pigment (C.I. Pigment Red 48:2) |
| Product Form | Fine free-flowing powder |
| Appearance | Red to reddish-brown powder |
| Primary Applications | Coatings, plastics, inks |
| Key Features | Good heat stability, high tinting strength, balanced rheology |
| Benefits | Consistent batch-to-batch performance, low dust generation, easy dispersion |
| Regulatory Status | Compliant with EU REACH; not listed under SVHC candidate list (as of latest update) |
| Storage Conditions | Store in cool, dry place below 30 °C; protect from moisture and direct sunlight |
Q1: What is the primary chemical class and typical hue of Lithol K4300?
A: Lithol K4300 is a high-performance monoazo pigment based on the lithium salt of 3-hydroxy-2-naphthoic acid, delivering a clean, bluish-red shade with strong tinting strength and excellent brightness.
Q2: Is Lithol K4300 suitable for use in food-contact plastics or inks?
A: Lithol K4300 is not approved for direct food-contact applications under major global regulatory frameworks. It is intended for general-purpose industrial coatings, printing inks, and non-food-related plastics where high chroma and thermal stability are required.
Q3: How does Lithol K4300 perform in terms of heat stability and weather resistance?
A: Lithol K4300 offers good thermal stability up to approximately 180–200 °C for short-term processing, making it suitable for many extrusion and injection molding applications. Its weather resistance is moderate—recommended for indoor applications or outdoor use with protective overcoats; for extended exterior durability, higher-performing pigments such as quinacridones or perylenes are typically preferred.
Q4: What types of resin systems show good compatibility with Lithol K4300?
A: Lithol K4300 demonstrates broad compatibility with common thermoplastic and thermosetting systems, including PVC, PS, ABS, acrylics, alkyds, and polyester-based coatings. It generally disperses well in polar media but may require optimized dispersion protocols in low-polarity matrices such as polyolefins.
Q5: What is the typical dosage range when using Lithol K4300 in industrial coatings or plastic compounds?
A: Dosage depends on the desired color strength and opacity, but Lithol K4300 is typically used at low concentrations—generally ranging from 0.1% to 2% by weight in final formulations—to achieve optimal performance without compromising dispersion stability or mechanical properties.
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E-mail: wangxingqiang@ericwchem.com
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