Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

BASF Tinuvin 350 Benzotriazole UV Absorber

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.

Features Of BASF Tinuvin 350 Benzotriazole UV Absorber

  1. Dual-Peak Protection - 304nm/346nm absorption with >99% UV blocking efficiency

  2. Thermal Resilience - Withstands processing temperatures up to 260°C

  3. Optical Clarity - Maintains >95% visible light transmission with <1% haze

  4. Synergistic Performance - 70% enhanced durability when combined with HALS

  5. Regulatory Compliance - Meets FDA and REACH standards for sensitive applications

Typical Applications Of BASF Tinuvin 350 Benzotriazole UV Absorber

  1. Automotive Components - UV protection for lighting systems and connectors

  2. Agricultural Films - Long-term durability for greenhouse covers

  3. Electronic Displays - Blue light resistance for optical components

  4. Solar Technology - Weatherproofing for photovoltaic encapsulation

  5. Industrial Coatings - Corrosion protection for metal substrates

Specifications Of BASF Tinuvin 350 Benzotriazole UV Absorber

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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