Description

Light Stabilizer UV-622 is a high-performance hindered amine light stabilizer (HALS) designed to protect polymers from the damaging effects of ultraviolet radiation and thermal degradation. This additive is critical for extending the service life and maintaining the aesthetic and mechanical properties of plastics exposed to outdoor environments. It is an essential component for manufacturers in the automotive, packaging, agricultural film, and construction materials industries seeking reliable, long-term polymer stabilization.

Application

• Polyolefin Stabilization: Primary use in polypropylene (PP) and polyethylene (PE) films, fibers, and molded articles for outdoor applications.
• Automotive Plastics: Protection of interior and exterior plastic components, such as bumpers, dashboards, and trims, from color fading and embrittlement.
• Agricultural Films: Extends the functional lifespan of greenhouse films, mulch films, and silage covers by preventing UV-induced breakdown.
• Packaging Materials: Used in plastic packaging to prevent degradation from UV exposure during storage and transportation.
• Synthetic Fibers: Stabilization of polyolefin-based fibers and tapes used in outdoor fabrics, geotextiles, and carpet backing.
• Engineering Plastics: Can be incorporated into various polymer blends and compounds requiring enhanced weatherability.

Basic Information

Product Name	Light Stabilizer UV-622
CAS No.	70198-29-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate; Tinuvin 622; Chimassorb 944; LS-622; HALS-622; UV Stabilizer 622; Light Stabilizer 622; Poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine-2,4-diyl][(2,2,6,6-tetramethyl-4-piperidyl)imino]-1,6-hexanediyl[(2,2,6,6-tetramethyl-4-piperidyl)imino]]
EINECS	Contact for details

Quality Control

Our Light Stabilizer UV-622 is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, performance, and consistency. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing key parameters such as assay, melting point, and additive content to guarantee product integrity for your formulations.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat sources and incompatible materials. Under these conditions, the product remains stable for an extended period.

Specification

Item	Specification
Appearance	White or light yellow powder or granules
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	55 - 65 °C
Volatile Matter	≤ 0.5%
Ash Content	≤ 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.