BASF Tinuvin 350 is a high-performance benzotriazole UV absorber designed for demanding polymer applications. This advanced stabilizer delivers dual-peak UV protection while maintaining optical clarity, extending material lifespan by 3-5 times in extreme outdoor conditions. Ideal for engineering plastics requiring exceptional weatherability and processing stability.
Dual-Peak Protection - 304nm/346nm absorption with >99% UV blocking efficiency
Thermal Resilience - Withstands processing temperatures up to 260°C
Optical Clarity - Maintains >95% visible light transmission with <1% haze
Synergistic Performance - 70% enhanced durability when combined with HALS
Regulatory Compliance - Meets FDA and REACH standards for sensitive applications
Automotive Components - UV protection for lighting systems and connectors
Agricultural Films - Long-term durability for greenhouse covers
Electronic Displays - Blue light resistance for optical components
Solar Technology - Weatherproofing for photovoltaic encapsulation
Industrial Coatings - Corrosion protection for metal substrates
Chemical Name | 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol |
Molecular Weight | 323.44 |
Appearance | White to Pale Yellow Crystalline Powder |
Melting Point | 81-84°C |
Flash Point | 215°C |
Density (20°C) | 1.15 g/cm³ |
Vapor Pressure (20°C) | 7.5×10⁻⁷ Pa |
Volatiles (150°C/3h) | ≤0.3% |
UV Absorption Peaks | 304 nm / 346 nm |
Molar Extinction Coefficient (346 nm) | 14,500 L/mol·cm |
Solubility (25°C) | Acetone:22% / Toluene:18% / Chloroform:25% |
Recommended Dosage | 0.15-0.60% (on substrate weight) |
Thermal Stability (TGA) | 1% wt loss@220°C / 5% wt loss@250°C |
Bulk Density | 410 kg/m³ |
Moisture Content | ≤0.1% |
Packaging | 20 kg/bag (aluminum foil moisture-proof) |
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