BLS® 600

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Hindered amine light stabilizer (HALS)


BLS® 600 is a high molecular weight hindered amine light stabilizer (HALS) that provides protection against photo-oxidative degradation in plastics, fibers, and adhesives.


  • Highly effective as a light stabilizer in plastics, both in thin and thick sections
  • Narrow polydispersity provides consistent performance during processing and end use
  • Provides enhanced long-term thermal oxidative stability in polyolefins
  • Synergistic performance with other light stabilizers (HALS, UV absorbers, benzoates)
  • Low volatility, good resistance to extraction, low interaction with pigments and fillers
  • FDA cleared in polyolefins


Chemical name: 1,6-Hexanediamine, N1, N6-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: 192268-64-7

Chemical structure:

Typical Properties

Product form: Solid

Melting range: 120–150oC

Molecular weight: Mn = 2600–3400 g/mol

Solubility (g/100 g solvent, 20oC)

Dichloromethane  > 15

Ethanol/water 95/5  > 2.5

n-Hexane  > 50

Isopropanol   > 0.2

n-Octanol  > 1.0

Tetrahydrofuran  > 15

Water  < 0.0001


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