UV Absorber 866

Product Overview

UV Absorber 866 represents a class of advanced hindered amine light stabilizers (HALS) engineered to provide exceptional protection against photodegradation in polymer matrices. Specifically optimized for polyurethane systems, this chemical additive ensures long-term durability and aesthetic retention in materials exposed to harsh environmental conditions. Our manufacturing process adheres to strict quality control standards, delivering a product that serves as a reliable equivalent to leading global brands while maintaining competitive pricing structures for bulk industrial procurement.

The primary function of this stabilizer is to scavenge free radicals generated during UV exposure, thereby preventing chain scission and cross-linking within the polymer backbone. This mechanism is crucial for maintaining the mechanical integrity and visual clarity of finished goods, particularly in applications where yellowing or brittleness would compromise product value. By integrating this stabilizer into your formulation, manufacturers can significantly extend the service life of polyurethane-based components.

Key Specifications

Quality consistency is paramount in chemical manufacturing. The following table outlines the typical physical and chemical properties associated with this grade. Each batch is accompanied by a Certificate of Analysis (COA) to verify compliance with these specifications.

Industrial Applications

This stabilizer is particularly effective in thermoplastic polyurethane (TPU) systems, where clarity and color stability are critical performance metrics. Unlike traditional stabilizer systems, UV Absorber 866 demonstrates increased efficacy in clear or light-colored TPU applications, preventing the unsightly yellowing often associated with UV exposure. Beyond TPU, it is suitable for use in polyurethane-coated floors, tarpaulins, and synthetic leather production.

The versatility of this chemical extends to other polymer families as well. It can be successfully incorporated into polyamides, aliphatic polyketones, styrene homopolymers, and copolymers. Additionally, it performs well in elastomers, thermoplastic elastomers (TPE), thermoplastic vulcanizates (TPV), epoxy resins, and polyolefins. This broad compatibility makes it a valuable asset for formulators working across diverse engineering plastic sectors.

Storage and Handling

To maintain optimal performance characteristics, proper storage conditions must be observed. This product exhibits good storage stability under normal conditions. However, exposure to high temperatures and humidity should be avoided during both storage and transportation. We recommend storing the material in a cool, dry, and well-ventilated area to prevent moisture absorption and heat degradation. Always follow standard industrial safety protocols when handling chemical powders to ensure workplace safety.