Unitechem HALS LS-123
Chemical Name
Bis(1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacate
Decanedioic acid, bis(2,2,6,6-tetramethyl-4-piperidinyl) ester, reaction products with 1,1-dimethylethyl hydroperoxide and octane / NOR-HALS, aminoether functionality
Product Features & Applications
Key Features
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NOR-type (aminoether) HALS — unique low-basicity structure prevents interactions with acidic coating components such as catalysts, pigments and biocides |
Excellent resistance to acidic environments — can cross-link with other coating ingredients for superior durability in 2K PUR and UV-curable clear coats |
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Liquid form — easy incorporation into both solvent-based and water-borne coating systems without pre-dissolution |
Prevents gloss loss, cracking and chalking — highly effective in minimising paint film defects caused by UV and weathering |
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Synergistic with UV absorbers — especially UV-1130, UV-928, UV-384 and UV-400 for maximum weathering protection in automotive refinish |
Broad substrate compatibility — effective in PU, acrylic, unsaturated polyester, ABS, PS, PP, PE, PVC, elastomers and sealants |
Applications
LS-123 is a high-performance liquid NOR-HALS developed specifically for coating systems containing acidic components. Its low basicity makes it the preferred choice for acid-catalysed stoving lacquers, 2K polyurethane coatings, UV-curable systems and water-borne coatings. Widely used in automotive OEM and refinish coatings, industrial coatings, decorative and wood coatings, as well as plastic substrates and adhesives/sealants.
| Application | Recommended Combination | Level |
|---|---|---|
| Automotive & industrial coatings | LS-123 + UV-1130 / UV-384 / UV-928 / UV-400 | 0.5 – 2% |
| Decorative & wood coatings | LS-123 alone or + UV-1130 / UV-384 | 0.5 – 2% |
| Water-borne systems | Emulsified directly; combine with UVA as needed | 0.5 – 1.5% |
| Plastics (PP, PE, ABS, PS, PU) | LS-123 + antioxidant | 0.1 – 1.0% |
2K PU Coatings
UV-Curable Systems
Automotive Refinish
Industrial Coatings
Wood & Decorative Coatings
Water-Borne Systems
PP / PE / ABS / PS
PU Elastomers
Adhesives & Sealants
Unsaturated Polyester
UV-Curable Systems
Automotive Refinish
Industrial Coatings
Wood & Decorative Coatings
Water-Borne Systems
PP / PE / ABS / PS
PU Elastomers
Adhesives & Sealants
Unsaturated Polyester
Industries
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Automotive |
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Coatings & Varnishes |
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Wood & Furniture |
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Building & Construction |
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Packaging |
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Electronics & Appliances |
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Sports & Outdoor |
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Renewable Energy |
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