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Chimassorb® 2020

Technical Datasheet | Supplied by BASF
Chimassorb® 2020 by BASF is a high molecular weight hindered amine light stabilizer (HALS). Offers an optimal combination of exceptional levels of UV- and long-term thermal stability and ancillary properties such as minimal pigment interaction and improved melt flow control. Chimassorb® 2020 is a highly effective light stabilizer for polyolefins (PP, PE), olefin copolymers such as EVA as well as blends of polypropylene with elastomers. In certain instances, it is effective in polyacetals, polyamides, polyurethanes, flexible and rigid PVC as well as PVC blends and in certain styrenic elastomer. Chimassorb® 2020 shows excellent polymer compatibility and high extraction resistance. Its recommended dosage level is 0.05-1.4%.
Product Type
  • Light Stabilizers / UV Absorbers > HALS, Hindered Amines
  • Heat Stabilizers
Chemical Composition
1,6-Hexanediamine, N,N’-bis(2,2,6,6-tetramethyl-4-piperidinyl)-polymer with 2,4,6-trichloro-1,3,5-triazine, reaction products with N-butyl-1-butanamine and N-butyl-2,2,6,6-tetramethyl-4-piperidinamine
CAS Number
Physical Form
Product Status
Applications/ Recommended for
  • PP
  • PVC > PVC, flexible
  • PVC > PVC, rigid
  • Other Thermoplastic > POM (Polyacetal)
  • PA, Nylon
  • PE
  • Fibers/ Textiles/ Carpets > Fibers

Chimassorb® 2020 Properties


Value & Unit
Test Condition
Test Method
Melting Point
120 - 150 °C
Molecular Weight
2600 - 3400 g/mol
Specific Gravity
1.01 g/cm3
(At 20°C)

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