UV Absorber 928

Product Overview

UV Absorber 928 represents a class of high-performance benzotriazole ultraviolet absorbers engineered for demanding industrial applications. This specialized chemical additive is designed to protect polymeric materials and coating systems from the detrimental effects of UV radiation. By effectively absorbing harmful UV rays and dissipating the energy as harmless heat, it significantly extends the service life of substrates exposed to harsh environmental conditions. The product is characterized by its light yellow crystalline appearance and exceptional purity levels, making it a preferred choice for manufacturers seeking reliability and consistency in their formulation processes.

Technical Specifications

Performance Characteristics

The superior performance of UV Absorber 928 is attributed to its robust molecular structure, which offers wide absorption properties across critical UV spectra. This ensures comprehensive protection for coatings and other photosensitive materials against photodegradation. The compound exhibits high solubility in various organic solvents and resin systems, facilitating easy integration into complex formulations without compromising clarity. Furthermore, its high temperature resistance makes it particularly suitable for processes involving elevated thermal conditions, such as curing cycles in powder coatings. The low volatility and ash content guarantee minimal loss during processing and maintain the aesthetic quality of the final product.

Industrial Applications

• High-performance powder coatings for architectural and industrial use.
• Coil continuous coatings requiring exceptional durability.
• Automotive coatings where weatherability is critical.
• Conventional liquid coatings needing enhanced UV protection.
• Plastic applications requiring long-term outdoor stability.

For optimal results, this UV absorber is often used in synergy with hindered amine light stabilizers (HALS) such as UV-292 or UV-123. This combination provides a comprehensive stabilization package that addresses both UV absorption and radical scavenging, maximizing the longevity of the coated substrate.

Storage and Handling

UV Absorber 928 demonstrates excellent storage stability under recommended conditions. To maintain product integrity, it should be stored in a cool, dry, and well-ventilated area away from direct sunlight and heat sources. Moisture and high humidity should be avoided during storage and transportation to prevent clumping or degradation. The standard packaging consists of cardboard drums lined with plastic bags, with a net weight of 25kg per drum, ensuring safe and efficient logistics for global distribution. Users are advised to follow standard industrial safety protocols when handling chemical additives.