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Tinuvin® 326 FL

Technical Datasheet | Supplied by BASF
Tinuvin® 326 FL by BASF is chemically phenol, 2-(5-chloro-2H-benzotriazol-2-yl)-6-(1,1-dimethylethyl)-4-methyl. It acts as a UV absorber belonging to hydroxyphenyl benzotriazole class which imparts good light stability to a variety of polymers. Especially suited for polyolefins. It has a wide range of indirect food approvals in polyolefins. Tinuvin® 326 FL possesses low volatility and high resistance to thermal degradation making it particularly useful in polyolefin compounding and molding processes.
Product Type
Light Stabilizers / UV Absorbers > Benzotriazoles
Chemical Composition
Phenol, 2-(5-chloro-2H-benzotriazole-2-yl)-6-(1,1-di-methylethyl)4-methyl
CAS Number
Physical Form
Product Status
Applications/ Recommended for
  • Compoundings
  • Safety, regulation & environment > Low volatiles
  • Polymer protection > Weatherability (UV, moisture, Oxygen...)
  • Mechanical/ physical performance > Thermal resistance

Tinuvin® 326 FL Properties


Value & Unit
Test Condition
Test Method
Molecular weight
316 g/mol
Melting range
138 - 141 °C
Flash point (DIN 51584)
238 °C

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