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

BASF Tinuvin 384-2 Benzotriazole UV Absorbers

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.

Features Of BASF Tinuvin 384-2 Benzotriazole UV Absorbers

  1. Precision UV Defense - 360nm peak absorption with >99% UV-A/B blocking efficiency

  2. Thermal Resilience - Outstanding stability with flash point >230°C

  3. Optical Clarity - Maintains crystal-clear appearance (haze <1%)

  4. Performance Multiplier - 80% enhanced weatherability with HALS synergists

  5. Sustainable Solution - REACH compliant with ultra-low VOC content

Typical Applications Of BASF Tinuvin 384-2 Benzotriazole UV Absorbers

  1. Automotive Finishes - Exceptional gloss retention for exterior coatings

  2. Architectural Coatings - Weather-resistant protection for building materials

  3. Industrial Metal - Long-term corrosion resistance for pre-painted metals

  4. Wood Protection - Superior color stability for outdoor furniture

  5. Renewable Energy - UV resistance for solar panel components

Specifications Of BASF Tinuvin 384-2 Benzotriazole UV Absorbers

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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