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High-intensity fluorescence under UV and daylight illumination.
Excellent thermal stability up to 220°C for processing in thermoplastics and coatings.
Good dispersibility in both polar and non-polar resin systems without agglomeration.
Low migration tendency, ensuring long-term color fidelity in flexible packaging films.
Compliant with REACH and RoHS directives for safe industrial use.
Safety signage and high-visibility traffic markings.
UV-responsive security inks for banknotes and ID documents.
Fluorescent masterbatches for PET and PP packaging films.
Special-effect coatings for automotive trim and consumer electronics housings.
Textile printing pastes for sportswear and workwear requiring ISO-certified visibility.
| Chemical Type | Disazo-based fluorescent organic pigment |
| Product Form | Fine free-flowing powder |
| Appearance | Bright yellow-green powder with consistent particle size distribution |
| Primary Applications | Plastics, inks, coatings, and textile printing |
| Key Features | UV-stable, non-bleeding, solvent-resistant |
| Benefits | Enhanced daytime visibility and strong UV excitation response |
| Storage Conditions | Store in cool, dry place away from direct sunlight; shelf life 24 months |
Q1: What types of resins and polymer systems is FWB-507 compatible with?
A: FWB-507 demonstrates good compatibility with a broad range of thermoplastic and thermosetting systems, including ABS, PS, PVC, acrylics, polyesters, and epoxy-based coatings. It is not recommended for high-temperature processing above 220°C without prior thermal stability evaluation.
Q2: How does FWB-507 perform under UV exposure and outdoor weathering?
A: FWB-507 offers moderate UV resistance in standard formulations; however, prolonged direct UV exposure may lead to gradual fluorescence attenuation. For extended outdoor applications, co-stabilization with UV absorbers and HALS is strongly advised to maintain brightness and color fidelity.
Q3: Is FWB-507 suitable for use in food-contact or medical-grade plastics?
A: FWB-507 is not pre-certified for food-contact or medical applications. Its suitability depends on full regulatory review by the end-user, including migration assessment and compliance verification against applicable regional requirements (e.g., FDA, EU Framework Regulation). It should only be used in such applications after thorough safety and regulatory validation.
Q4: What is the typical dosage range for achieving strong fluorescent effect?
A: FWB-507 is highly efficient and typically used at low concentrations. Effective fluorescence is generally achieved within a range of 0.1% to 2.0% by weight, depending on the base polymer transparency, desired intensity, and processing method. Optimal loading should be determined empirically for each formulation.
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