BASF Tinuvin 384-2 is a high-performance liquid benzotriazole UV absorber featuring exceptional 360nm peak absorption (ε=39,000 L/mol·cm). This innovative stabilizer delivers superior photoprotection while maintaining >95% visible light transmittance, making it ideal for automotive and industrial coatings requiring extreme durability under harsh environmental exposure.
Precision UV Defense - 360nm peak absorption with >99% UV-A/B blocking efficiency
Thermal Resilience - Outstanding stability with flash point >230°C
Optical Clarity - Maintains crystal-clear appearance (haze <1%)
Performance Multiplier - 80% enhanced weatherability with HALS synergists
Sustainable Solution - REACH compliant with ultra-low VOC content
Automotive Finishes - Exceptional gloss retention for exterior coatings
Architectural Coatings - Weather-resistant protection for building materials
Industrial Metal - Long-term corrosion resistance for pre-painted metals
Wood Protection - Superior color stability for outdoor furniture
Renewable Energy - UV resistance for solar panel components
Chemical Name | Octyl 3-(2H-benzotriazol-2-yl)-5-(tert-butyl)-4-hydroxybenzenepropanoate |
CAS Number | 127519-17-9 |
Molecular Weight | 451.6 g/mol |
Appearance | Pale Yellow Liquid |
Dynamic Viscosity (20°C) | 3200 cps |
Density (20°C) | 1.0718 g/cm³ |
Flash Point | >230°C |
Vapor Pressure (20°C) | <10⁻⁶ Pa |
UV Absorption Peak | 360 nm |
Molar Extinction Coefficient (360 nm) | 39,000 L/mol·cm |
Light Transmittance | 460 nm≥95%;500 nm≥97% |
Volatiles (150°C/3h) | ≤0.5% |
Moisture Content | ≤0.1% |
Solubility (20°C) | Butanol>30%;Toluene>30%;Water<0.01% |
Recommended Dosage | 1.0-3.0% (on binder weight) |
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