UV Absorber 292
- CAS No.41556-26-7
- GradeIndustrial / Pharmaceutical
- Availability● In Stock
High-efficiency hindered amine light stabilizer designed for superior UV protection in polyurethanes and industrial coatings.
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Product Overview
UV Absorber 292 represents a premium class of hindered amine light stabilizers (HALS) engineered to provide exceptional protection against photodegradation in various polymer systems. As a liquid additive, this compound offers distinct processing advantages over solid stabilizers, particularly in solvent-based formulations where rapid dissolution and homogeneous dispersion are critical. Our manufacturing process ensures high purity levels, making it an ideal choice for demanding applications requiring long-term weatherability and surface integrity.
This chemical functions primarily by scavenging free radicals generated during UV exposure, thereby interrupting the degradation cycle that leads to chalking, cracking, and loss of gloss in coated surfaces. Unlike traditional UV absorbers that merely filter light, this HALS product actively regenerates its stabilizing capacity, providing prolonged protection throughout the lifecycle of the material.
Technical Specifications
| Parameter | Specification |
|---|---|
| CAS Number | 41556-26-7 |
| Chemical Name | Bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate |
| Molecular Formula | C30H56N2O4 |
| Molecular Weight | 508.78 g/mol |
| Appearance | Light yellow liquid |
| Assay | ≥96.0% |
| Hazen Color | <50 |
| Transmittance (425nm) | ≥98% |
| Transmittance (500nm) | ≥99% |
| Density | 0.9925 g/cm3 |
| Flash Point | 257.1°C |
Industrial Applications
The versatility of UV Absorber 292 makes it a cornerstone ingredient in numerous protective coating formulations. It is especially renowned for its compatibility with polyurethane systems, where its superior solubility prevents blooming and ensures a clear, durable finish. Automotive manufacturers rely on this stabilizer for clear coats that must withstand harsh environmental conditions without yellowing or deteriorating.
Beyond automotive finishes, this product is extensively used in UV curing coatings, industrial paints, and printing inks. It provides robust defense for wood varnishes exposed to sunlight, preserving aesthetic appeal and structural integrity. Additionally, it is effective in stabilizing unsaturated polyesters and polymethacrylates, preventing chain scission and maintaining mechanical properties over extended periods of outdoor exposure.
Key Performance Advantages
- Exceptional solubility in organic solvents facilitates easy incorporation into liquid formulations.
- Low volatility ensures the stabilizer remains within the coating matrix during curing and service.
- High transmittance values guarantee minimal impact on the color and clarity of the final product.
- Regenerative radical scavenging mechanism offers long-term protection compared to conventional absorbers.
- Compatible with a wide range of resins including polyurethanes, acrylics, and polyesters.
Storage and Handling
UV Absorber 292 is classified as a non-toxic, non-flammable, and non-corrosive substance under normal handling conditions. It exhibits excellent storage stability when kept in sealed containers away from direct sunlight and moisture. We recommend storing the product in a cool, dry warehouse environment to maintain optimal quality. Standard packaging includes 25kg drums, though customized bulk packaging solutions are available to meet specific logistical requirements for global manufacturing partners.
