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CAS: 124172-53-8

Low molecular weight hindered amine light stabilizer (HALS)


LS-4050 is a low molecular weight hindered amine light stabilizer (HALS) for thermoplastics and elastomers, in particular for applications demanding high light stability (e.g. styrenic polymers and PP). It provides excellent light stability for articles with a high surface area such as films and tapes, as it’s not dependent on the polymer’s thickness.

Chemical name:


Molecular formula:


Molecular weight:

450 g/mol

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LS-4050 is recommended to be used in polystyrene, impact polystyrene, ABS, SAN, ASA, polypropylene, impact modified PP (TPO), EPDM, and in polyamides. Due to its low volatility, LS-4050 is unique for high temperature processes compared to other low molecular weight HALS.

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