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High chromatic strength with excellent color purity and consistency across batches.
Outstanding thermal stability suitable for high-temperature processing up to 280 °C.
Good dispersibility in both polar and non-polar polymer matrices without requiring additional dispersing aids.
Complies with major global regulatory frameworks including EU REACH, US FDA 21 CFR for indirect food contact applications, and ISO 9001-certified manufacturing.
Low volatile organic compound (VOC) content, supporting sustainable compounding and low-emission end products.
Coloration of engineering thermoplastics such as polyamide (PA6, PA66), polycarbonate (PC), and PBT.
Automotive interior components requiring long-term lightfastness and heat resistance.
Consumer electronics housings where dimensional stability and color retention under UV exposure are critical.
Medical device housings meeting biocompatibility requirements per ISO 10993-5 (cytotoxicity).
Industrial packaging films requiring migration-compliant pigment systems for indirect food contact.
| Chemical Type | Polycyclic quinacridone derivative |
| Product Form | Free-flowing fine powder |
| Appearance | Uniform maroon-red granular powder |
| Primary Applications | Engineering plastics, automotive interiors, medical devices, food-contact packaging |
| Key Features | Thermal stability, dispersion efficiency, regulatory compliance, low VOC |
| Benefits | Reduced processing temperature, consistent batch-to-batch color, extended product lifetime |
| Storage Conditions | Store in original sealed packaging at 15–25 °C, protect from moisture and direct sunlight |
| Shelf Life | 24 months from date of manufacture under recommended storage conditions |
Q1: What is the primary application area for Graphtol LG pigments?
A: Graphtol LG organic pigments are specially developed for demanding industrial coating applications, including coil coatings, automotive refinishes, and high-performance architectural paints where excellent lightfastness, heat stability, and dispersion efficiency are required.
Q2: Is Graphtol LG suitable for water-based systems?
A: Yes — Graphtol LG pigments are engineered for compatibility with both solvent-borne and water-borne formulations. Their surface treatment facilitates stable dispersion in aqueous media without requiring excessive dispersant load or high-shear stabilization.
Q3: How does Graphtol LG compare to conventional azo pigments in terms of thermal stability?
A: Graphtol LG exhibits significantly enhanced thermal stability compared to standard monoazo pigments, enabling its use in applications involving curing temperatures up to 200 °C — such as powder coatings and baked enamel systems — without noticeable hue shift or decomposition.
Q4: What is the recommended dosage range for optimal color strength and rheology control?
A: Dosage depends on formulation requirements and desired opacity, but Graphtol LG is typically used at low concentrations due to its high tinctorial strength. In most industrial coatings, effective loading generally ranges from 0.1% to 2% by weight relative to total formulation solids.
Q5: Are there any special handling or storage recommendations to maintain pigment performance?
A: Store in original sealed packaging in a cool, dry place away from direct sunlight and sources of heat or moisture. Avoid prolonged exposure to high humidity, as it may affect dispersibility. Once opened, reseal tightly and use within recommended shelf life to preserve optimal processing behavior.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
