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Tinuvin® NOR® 371

Technical Datasheet | Supplied by BASF
Tinuvin® NOR™ 371 by BASF is a high molecular weight hindered amine NOR stabilizer (NOR HALS). This high-performing light stabilizer is particularly well suited for applications in contact with chemicals, like in agriculture, such as greenhouse and mulch films or nonwovens. Tinuvin® NOR™ 371 provides outstanding stabilization to agricultural films even in presence of chemicals such as pesticides, insecticides or soil disinfection agents. It shows outstanding performance also as long term thermal stabilizer, this is especially useful where films are in contact with frames (wood, iron, aluminum). Tinuvin® NOR™ 371 areas of application include polyolefins (PP, PE) as well as olefin copolymers, such as EVA and EBA. Recommended dosage when used in greenhouse films is 0.2–1.6% and 0.2–1.0% in mulch films.
Product Type
  • Light Stabilizers / UV Absorbers > HALS, Hindered Amines
  • Heat Stabilizers
Chemical Composition
Triazine derivative
CAS Number
Physical Form
Slightly pinkish
Product Status
Applications/ Recommended for
  • PP
  • PE
  • Other Thermoplastic > EVA
  • Agriculture > Greenhouses
  • Agriculture > Mulch films
  • Fibers/ Textiles/ Carpets > Non wovens
Food contact approval

Tinuvin® NOR® 371 Properties


Value & Unit
Test Condition
Test Method
Molecular Weight
2800 - 4000 g/mol
Melting Point
91 - 104 °C
Specific Gravity
1.03 g/cm3
(At 24°C)

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