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High-intensity fluorescence under UV and daylight illumination.
Excellent thermal stability up to 220°C for compatibility with high-temperature processing.
Good dispersibility in both polar and non-polar organic media.
Resistant to migration and blooming in polymer matrices.
Non-heavy-metal formulation compliant with major global regulatory guidelines (RoHS, REACH).
Plastic coloration for automotive interior trims and safety signage.
Fluorescent inks for packaging security labels and anti-counterfeiting features.
UV-curable coatings for decorative flooring and architectural panels.
Masterbatch formulations for polyolefins, ABS, and PS-based products.
Specialty textile printing inks requiring lightfast fluorescent effects.
| Chemical Type | Disazo-based fluorescent organic pigment |
| Product Form | Free-flowing fine powder |
| Appearance | Bright yellow-green fluorescent powder |
| Primary Applications | Plastics, inks, coatings, masterbatches |
| Key Features | UV-stable, thermally robust, low volatility |
| Benefits | Consistent batch-to-batch performance, easy incorporation, minimal filter clogging |
| Recommended Carrier Solvents | Toluene, xylene, ethyl acetate, methyl ethyl ketone (MEK) |
| Storage Conditions | Keep in cool, dry place; protect from direct sunlight and moisture |
Q1: What types of resin systems is FWB-400 compatible with?
A: FWB-400 demonstrates good compatibility with a broad range of thermoplastic and thermosetting systems, including ABS, PS, PC, PMMA, PVC, and epoxy resins. It is not recommended for high-temperature processing above 260 °C or strongly acidic/alkaline media without prior compatibility testing.
Q2: How does FWB-400 perform under UV exposure and outdoor weathering?
A: As a fluorescent pigment, FWB-400 delivers strong chromatic brightness under UV illumination but exhibits limited inherent UV stability. Long-term outdoor exposure may lead to fluorescence fading; co-stabilization with HALS-type UV absorbers and hindered phenols is strongly advised for extended durability.
Q3: Is FWB-400 suitable for food-contact or pharmaceutical applications?
A: FWB-400 is not certified for direct food-contact or pharmaceutical use. It is intended for industrial, decorative, and functional applications where regulatory compliance is governed by end-product specifications—not as a food-grade or medicinal pigment.
Q4: What is the typical dosage range for optimal fluorescence effect?
A: Optimal fluorescence intensity is generally achieved at low concentrations—typically ranging from 0.1% to 2% by weight relative to the base polymer—depending on substrate transparency, desired brightness level, and processing conditions. Overloading may cause aggregation and reduced dispersion efficiency.
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