Specification
Light Stabilizer LS 292 is a low molecular weight hindered amine light stabilizer (HALS) with a chemical composition consisting of a mixture of bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate and 1-(methyl)-8-(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate. This product is supplied in liquid form, appearing as a colorless to light yellow transparent liquid.
Through a free radical scavenging mechanism, LS 292 effectively inhibits the photo-oxidative degradation of polymer materials, providing long-term light stabilization protection for a wide range of polymer systems. Its liquid form imparts characteristics such as easy dispersion and good compatibility with other components, making it suitable for both solvent-based and water-based systems
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Molecular Formula: C30H56N2O4 |
Molecular Weight: 508.78 |
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CAS No: 41556-26-7;82919-37-7 |
Appearance: Clear, slight yellow liquid |
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Assay:65% |
Melting point(℃): Liquid |
Features
With its cost efficiency, LS 292 is an excellent general purpose liquid hindered amine light stabilizer especially developed for coatings.
Liquid Form: A colorless to light yellow transparent liquid, easy to meter and disperse during processing.
Low Molecular Weight HALS: Possesses excellent free radical scavenging ability, providing highly efficient light stabilization protection.
Good Compatibility: Soluble in most common organic solvents and compatible with a wide range of polymers.
Broad Applicability: Suitable for both water-based and solvent-based systems.
Significant Synergistic Effect: When used in combination with UV absorbers (such as UV 1130, UV 312, etc.), it exhibits excellent synergistic effects.
Applications
Light Stabilizer 292 is especially developed for coatings and can be used in a broad range of applications such as automotive refinish coatings, industrial topcoats, coil coatings, wood stains or trade sales paints and varnishes, radiation curable coatings.
LS 292 is widely suitable for the following areas:
| Application Field | Specific Materials |
|---|---|
| Polyurethanes | 1K and 2K polyurethane systems, polyurethane elastomers |
| Polyvinyl Chloride | Flexible PVC |
| Styrenics | ABS, ASA, Styrene copolymers |
| Acrylics | Thermoplastic acrylics, thermosetting acrylics, water-based acrylics |
| Engineering Plastics | Polyethylene (PE), Polypropylene (PP) |
| Polyesters | Unsaturated polyesters, alkyd resins |
| Others | Elastomers, adhesives, sealants, phenolic resins, vinyl resins, PVB, PVC |
Coating Applications: Refinish paints, industrial coatings, coil coatings, wood coatings, trade sales paints, radiation-cured acrylic coatings.
Other Applications: Plastisols, liquid color masterbatches.
Package & Storage
25kg/ fiber drums. It can be packed in other forms according to user's requirements.
Shelf life: not more than 24 months in the room temperature.
Mechanism of Action
The mechanism of action of hindered amine light stabilizers (HALS) is similar to that of antioxidants, functioning by scavenging free radicals generated from the initial ultraviolet degradation of the organic system.
Key Characteristics:
Non-consumptive: HALS are not consumed during the process of scavenging free radicals, allowing them to provide long-term, continuous protection.
Bulk Protection: Unlike UV absorbers, HALS do not follow the Beer-Lambert law and are capable of providing protection to both the bulk phase and the surface of the entire material.
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