Unitechem HALS 783
Unitechem HALS 783 is a synergistic blend of the hindered amine light stabilizers HALS 944 and HALS 622. It stabilizes better than either component alone and gives good cost-performance in LDPE, LLDPE and HDPE film, tapes, thick sections and PP fibers, including agricultural film. Compare it with the other grades in our HALS UV stabilizer guide, or request the TDS and a quote.
| LS-944 | Poly{[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine-2,4-diyl][(2,2,6,6-tetramethyl-4-piperidinyl)imino]-1,6-hexanediyl[(2,2,6,6-tetramethyl-4-piperidinyl)imino]} |
| LS-622 | Butanedioic acid, dimethyl ester, polymer with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidine ethanol |
Key Features
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Synergistic dual-HALS blend — combines the triazine-based LS-944 and succinate-based LS-622 for superior stabilization vs. either component alone |
Versatile for thin and thick sections — excellent cost/performance in LDPE, LLDPE, HDPE films, tapes, thick sections, and PP fibers |
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Outstanding extraction resistance with low gas fading and minimal pigment interaction |
Low volatility and minimal migration — high molecular weight polymeric structure ensures long-term durability |
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Excellent long-term thermal stability — effective antioxidant contribution from the LS-622 component |
Food contact approved — product of choice for thick sections requiring indirect food contact compliance |
Applications
LS-783 is particularly effective in LDPE, LLDPE and HDPE films, tapes and thick sections, and PP fibers and films. Application areas include polyolefins (PP, PE), olefin copolymers such as EVA, blends of PP with elastomers, polyurethane, polyformaldehyde, polyamide and polyester. Especially recommended where both high extraction resistance and food contact compliance are required.
| Application | Substrate | Recommended Level |
|---|---|---|
| Thick sections | HDPE, LLDPE, LDPE, PP | 0.05 – 1.0% |
| Films | LLDPE, PP | 0.1 – 1.0% |
| Tapes | PP, HDPE | 0.1 – 0.8% |
| Fibers | PP fibers | 0.1 – 1.4% |
HDPE / LLDPE / LDPE
EVA
PU (Polyurethane)
POM (Polyformaldehyde)
PA (Nylon)
Polyester
PP Elastomer Blend
Film & Fiber
Food Contact Applications
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Agriculture |
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Automotive |
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Textiles & Fiber |
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Packaging |
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Building & Construction |
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Wire & Cable |
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Sports & Outdoor |
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Renewable Energy |
