Characteristics and Uses: YS-770 is a hindered amine light stabilizer (HALS) for applications demanding particularly high light stability. It is recommended to be used in PP, EPDM, PS, HIPS, ABS, SAN, ASA and PUR and is also effective in PA and polyacetals. It is provides excellent light stability for thick sections and films in the recommended substrates. Benefits of using YS 770 is the high light-stabilizing performance, particularly in PP thick sections. It has broad compatibility and can be easily dispersed. Compared to conventional UV-absorbers, the effectiveness of YS 770 is less dependent on the polymer’s thickness. For this reason the use of YS 770 also provides good light stability in articles with higher specific surface, e.g. films and tapes. The recommended concentrations range between 0.1% and 0.5%, depending on the substrate, processing conditions and application.

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