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Outdoor plastic products face constant aging from UV, heat, and moisture. OMNISTAB® LS3529 and LS3346 are high-molecular-weight hindered amine light stabilizers (HALS) that provide effective, long-term protection for polyolefins and engineering plastics.
OMNISTAB® LS3529 – All-round Long-Term Protection
This polymeric HALS features both hindered amine and triazine groups, offering:
Excellent heat and extraction resistance, stable during high temperature processing and outdoor use
Low color contribution and low volatility – minimal impact on product appearance
Low alkalinity – remains effective in acidic environments (acid rain, pesticides)
Significantly extended service life and color retention
It is ideal for PP, PE, and their composites – used in films, tapes, fibers, sheets, and injection molded parts. It also works well with PA, PET, PBT, PVC, POM, ABS, HIPS, PMMA, and more, making it a great choice for automotive plastics, outdoor tarpaulins, and artificial turf.
OMNISTAB® LS3346 – Specialty Stabilizer for Transparent Products
OMNISTAB® LS3346 is a high-molecular-weight hindered amine light stabilizer (HALS), which can effectively prevent materials from aging issues such as degradation, discoloration and embrittlement during long-term outdoor service.
Excellent light transmission and very low color – prevents yellowing and hazing in clear or light-colored plastics
Good gas-fading resistance – protects against NOx attack, maintaining gloss and color
Low thermal weight loss and high processing stability – suitable for film blowing, spinning, and high speed injection molding
Works synergistically with UV absorbers to multiply outdoor lifespan
It is particularly suited for PP and PE films, tapes, fibers, and molded/rotomolded articles, as well as for nylons, polyesters, and polycarbonate.
For more details, technical data, or application advice on OMNISTAB® LS3529 and LS3346, please contact our sales team. We offer professional support and customized solutions for your polymer needs.
