Description

Chimassorb 944Fd is a high-performance, polymeric hindered amine light stabilizer (HALS) widely recognized for its exceptional long-term thermal and UV stability. This additive is critical for protecting polymers from photo-oxidative degradation, thereby extending the service life and maintaining the mechanical properties and color of finished products. It is an essential component for manufacturers in the plastics, packaging, and synthetic fiber industries who require reliable protection against environmental stressors.

Application

• Primary stabilizer for polyolefins (PP homopolymer & copolymer, HDPE, LDPE) in demanding outdoor applications.
• Critical additive in agricultural films and greenhouse covers to prevent embrittlement and cracking from prolonged UV exposure.
• Protection for automotive components such as bumpers, interior trim, and under-the-hood parts against heat and light.
• Stabilization of synthetic fibers and tapes (e.g., PP tapes) used in packaging and geotextiles.
• Enhancing the weatherability of plastic construction materials like siding, pipes, and fittings.
• Used in masterbatch production for consistent and easy dispersion in polymer processing.

Basic Information

Product Name	Chimassorb 944Fd
CAS No.	97088-78-3
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	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]]; Chimassorb 944; Hostavin N 30; Tinuvin 622; Lowilite 94; Cyasorb UV-3346; HALS 944; Polymeric HALS; Bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate polymer
EINECS	Contact for details

Quality Control

Our Chimassorb 944Fd is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance reliability. Each lot undergoes rigorous testing, including assay, melting point, and color index analysis, to meet precise industry specifications. A Certificate of Analysis (COA) documenting all critical parameters is provided with every shipment 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 original container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white powder or granules
Identification (IR)	Conforms to standard
Assay (HALS Content)	≥ 96.0 %
Melting Point	100 - 135 °C
Volatile Matter	≤ 0.5 %
Ash Content	≤ 0.1 %
Color (Gardner)	≤ 3

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