Description

Light Stabilizer 3529 is a high-performance hindered amine light stabilizer (HALS) designed to protect polymers from the damaging effects of ultraviolet (UV) radiation and thermal degradation. This compound is critical for extending the service life and maintaining the aesthetic properties of plastics and coatings exposed to harsh outdoor environments. It is an essential additive for manufacturers in the automotive, packaging, and construction industries seeking to enhance the durability of their polymer-based products. Light Stabilizer 3529 CAS NO 193098-40-7 offers excellent compatibility and low volatility in a wide range of polymer matrices.

Application

• Primary stabilizer for polyolefins (PP, HDPE, LDPE) in automotive parts, agricultural films, and outdoor furniture.
• Enhancing the UV resistance of engineering plastics used in exterior automotive components and construction materials.
• Protecting industrial and automotive coatings from chalking, gloss loss, and color fade.
• Stabilizing polyurethane systems and other elastomers against photodegradation.
• Use in masterbatch formulations for easy and uniform dispersion in final polymer processing.
• Improving the long-term weathering performance of plastic packaging and fibers.

Basic Information

Product Name	Light Stabilizer 3529
CAS No.	193098-40-7
Molecular Formula	C41H69N5O5
Molecular Weight	704.02 g/mol
Synonyms	Bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate and Methyl 1,2,2,6,6-pentamethyl-4-piperidyl sebacate mixture; Tinuvin 770; Hostavin 3050; Chimassorb 2020; Uvinul 4050; Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate (common misnomer); LS-3529; HALS 3529
EINECS	Contact for details

Quality Control

Every batch of Light Stabilizer 3529 is manufactured and tested under a strict quality management system. We ensure compliance with relevant industry standards and provide comprehensive batch-specific documentation. Certificates of Analysis (COA) detailing purity, assay, and key physical parameters are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed when not in use to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Melting Point	81 - 86 °C
Loss on Drying	≤ 0.5%
Ash Content	≤ 0.1%

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