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Exceptionally high chroma and brightness under UV-A (365 nm) excitation.
Excellent thermal stability up to 220°C, suitable for high-temperature processing.
Good dispersibility in both polar and non-polar organic media without surface treatment.
Low migration tendency in polymer matrices, ensuring long-term color fidelity.
Compliant with REACH Annex XVII and free of heavy metals (Pb, Cd, Hg, Cr⁶⁺).
UV-responsive security inks for banknotes and ID documents.
Fluorescent masterbatches for PET and PP packaging films.
High-visibility safety signage and traffic markings.
Special-effect coatings for automotive trim and consumer electronics.
UV-curable screen printing inks for textile and promotional products.
| Chemical Type | Organic fluorescent dye dispersed in polymeric carrier |
| Product Form | Free-flowing granular concentrate |
| Appearance | Bright yellow-green powder (dry), non-dusting |
| Primary Applications | Polymer coloring, ink formulation, coating systems |
| Key Features | UV fluorescence, heat resistance, low volatility |
| Benefits | Easy dispersion, batch-to-batch consistency, solvent-free |
| Recommended Loading Range | 0.5–3.0 wt% depending on substrate and intensity requirement |
| Storage Conditions | Keep sealed in original container at 15–25°C, away from UV light |
Q1: What types of resin systems is Korea PA-400 compatible with?
A: Korea PA-400 is formulated for compatibility with common thermoplastic and thermosetting systems, including ABS, PS, PVC, PET, polyolefins, and unsaturated polyester resins. Performance may vary depending on processing temperature and residence time; pre-testing in the target system is recommended.
Q2: How does PA-400 perform under UV exposure and outdoor weathering?
A: As a fluorescent pigment, PA-400 delivers strong chromatic intensity under UV light but is not inherently UV-stabilized. Long-term outdoor durability depends on the host matrix and inclusion of appropriate UV absorbers or HALS stabilizers. For extended outdoor applications, co-stabilization is strongly advised.
Q3: What is the typical dosage range for achieving optimal fluorescence effect?
A: Optimal fluorescence is typically achieved at low concentrations, generally ranging from 0.1% to 2% by weight in the final compound—exact dosage depends on desired brightness, substrate opacity, and processing conditions. Overloading may lead to aggregation and reduced efficiency.
Q4: Can PA-400 be used in food-contact or medical-grade polymers?
A: Korea PA-400 is intended for industrial and decorative applications only. It is not certified for direct food contact, pharmaceutical, or implantable medical use. Compliance with regulatory requirements must be verified independently for each end-use application and jurisdiction.
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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
