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High-intensity fluorescence under UV and daylight illumination.
Excellent thermal stability up to 220°C for extrusion and hot-melt processing.
Good compatibility with common thermoplastics including PS, ABS, and PVC.
Low migration tendency in polymer matrices, ensuring long-term color fidelity.
Non-hazardous formulation compliant with REACH and RoHS directives.
Fluorescent signage and safety markings for industrial and transportation use.
UV-responsive packaging films and tamper-evident labels.
High-visibility components in automotive interior trim and dashboard indicators.
Specialty inks for security printing and brand authentication.
Fluorescent masterbatches for injection-molded consumer goods.
| Chemical Type | Organic fluorescent dye dispersed in polymeric carrier |
| Product Form | Free-flowing granules |
| Appearance | Bright yellow-green granules |
| Primary Applications | Polymer coloring, ink systems, coating formulations |
| Key Features | UV-stable, heat-resistant, non-bleeding |
| Benefits | Consistent batch-to-batch performance, easy dispersion, low dust generation |
| Recommended Loading Range | 0.5–3.0 wt% (varies by polymer and application) |
| Storage Conditions | Keep sealed in cool, dry place away from direct sunlight |
Q1: What types of resin systems is FWB-305 compatible with?
A: FWB-305 demonstrates good compatibility with common thermoplastic and thermosetting systems, including ABS, PS, PVC, acrylics, and unsaturated polyesters. It is not recommended for high-temperature engineering resins such as polyphenylene sulfide (PPS) or polyetherimide (PEI) without prior thermal stability testing.
Q2: How does FWB-305 perform under UV exposure and outdoor weathering?
A: As a fluorescent pigment, FWB-305 provides strong chromatic impact under UV-A light but is not inherently UV-stabilized. Long-term outdoor exposure may lead to fluorescence fade; therefore, co-addition of UV absorbers and HALS stabilizers is strongly advised in exterior applications.
Q3: Can FWB-305 be used in food-contact plastics?
A: FWB-305 is not certified for direct food-contact applications. Its use in packaging or containers intended for food, pharmaceuticals, or cosmetics requires full regulatory assessment by the end-user, including migration evaluation and compliance verification per applicable regional regulations.
Q4: What is the typical dosage range for optimal fluorescence intensity?
A: Optimal performance is generally achieved at low concentrations—typically ranging from 0.1% to 2% by weight relative to the base polymer—depending on desired brightness, substrate opacity, and processing conditions. Over-dosing may cause aggregation and reduced dispersion efficiency.
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